Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Region | Seed | Team | Coach | Finished | Final opponent | Score |
| --- | --- | --- | --- | --- | --- | --- |
| West |  |  |  |  |  |  |
| West | 1 | St. John's | Lou Carnesecca | Round of 32 | 8 Auburn | L 81-65 |
| West | 2 | Louisville | Denny Crum | Champion | 1 Duke | W 72-69 |
| West | 3 | North Carolina | Dean Smith | Sweet Sixteen | 2 Louisville | L 94-79 |
| West | 4 | UNLV | Jerry Tarkanian | Sweet Sixteen | 8 Auburn | L 70-63 |
| West | 5 | Maryland | Lefty Driesell | Round of 32 | 4 UNLV | L 70-64 |
| West | 6 | UAB | Gene Bartow | Round of 32 | 3 North Carolina | L 77-59 |
| West | 7 | Bradley | Dick Versace | Round of 32 | 2 Louisville | L 82-68 |
| West | 8 | Auburn | Sonny Smith | Regional Runner-up | 2 Louisville | L 84-76 |
| West | 9 | Arizona | Lute Olson | Round of 64 | 8 Auburn | L 73-63 |
| West | 10 | UTEP | Don Haskins | Round of 64 | 7 Bradley | L 83-65 |
| West | 11 | Missouri | Norm Stewart | Round of 64 | 6 UAB | L 66-64 |
| West | 12 | Pepperdine | Jim Harrick | Round of 64 | 5 Maryland | L 69-64 |
| West | 13 | Northeast Louisiana | Mike Vining | Round of 64 | 4 UNLV | L 74-51 |
| West | 14 | Utah | Lynn Archibald | Round of 64 | 3 North Carolina | L 84-72 |
| West | 15 | Drexel | Eddie Burke | Round of 64 | 2 Louisville | L 93-73 |
| West | 16 | Montana State | Stu Starner | Round of 64 | 1 St. John's | L 83-74 |
| Midwest |  |  |  |  |  |  |
| Midwest | 1 | Kansas | Larry Brown | National Semifinals | 1 Duke | L 71-67 |
| Midwest | 2 | Michigan | Bill Frieder | Round of 32 | 7 Iowa State | L 72-69 |
| Midwest | 3 | Notre Dame | Digger Phelps | Round of 64 | 14 Arkansas-Little Rock | L 90-83 |
| Midwest | 4 | Georgetown | John Thompson | Round of 32 | 5 Michigan State | L 80-68 |
| Midwest | 5 | Michigan State | Jud Heathcote | Sweet Sixteen | 1 Kansas | L 96-86 |
| Midwest | 6 | North Carolina State | Jim Valvano | Regional Runner-up | 1 Kansas | L 75-67 |
| Midwest | 7 | Iowa State | Johnny Orr | Sweet Sixteen | 6 North Carolina State | L 70-66 |
| Midwest | 8 | Jacksonville | Bob Wenzel | Round of 64 | 9 Temple | L 61-50 |
| Midwest | 9 | Temple | John Chaney | Round of 32 | 1 Kansas | L 65-43 |
| Midwest | 10 | Miami, Ohio | Jerry Peirson | Round of 64 | 7 Iowa State | L 81-79 |
| Midwest | 11 | Iowa | George Raveling | Round of 64 | 6 North Carolina State | L 66-64 |
| Midwest | 12 | Washington | Andy Russo | Round of 64 | 5 Michigan State | L 72-70 |
| Midwest | 13 | Texas Tech | Gerald Myers | Round of 64 | 4 Georgetown | L 70-64 |
| Midwest | 14 | Arkansas-Little Rock | Mike Newell | Round of 32 | 6 North Carolina State | L 80-66 |
| Midwest | 15 | Akron | Bob Huggins | Round of 64 | 2 Michigan | L 70-64 |
| Midwest | 16 | North Carolina A&T | Don Corbett | Round of 64 | 1 Kansas | L 71-46 |
| Southeast |  |  |  |  |  |  |
| Southeast | 1 | Kentucky | Eddie Sutton | Regional Runner-up | 11 LSU | L 59-57 |
| Southeast | 2 | Georgia Tech | Bobby Cremins | Sweet Sixteen | 11 LSU | L 70-64 |
| Southeast | 3 | Memphis State (Vacated) | Dana Kirk | Round of 32 | 11 LSU | L 83-81 |
| Southeast | 4 | Illinois | Lou Henson | Round of 32 | 5 Alabama | L 58-56 |
| Southeast | 5 | Alabama | Wimp Sanderson | Sweet Sixteen | 1 Kentucky | L 68-63 |
| Southeast | 6 | Purdue | Gene Keady | Round of 64 | 11 LSU | L 94-87 |
| Southeast | 7 | Virginia Tech | Charles Moir | Round of 64 | 10 Villanova | L 71-62 |
| Southeast | 8 | Western Kentucky | Clem Haskins | Round of 32 | 1 Kentucky | L 71-64 |
| Southeast | 9 | Nebraska | Moe Iba | Round of 64 | 8 Western Kentucky | L 67-59 |
| Southeast | 10 | Villanova | Rollie Massimino | Round of 32 | 2 Georgia Tech | L 66-61 |
| Southeast | 11 | LSU | Dale Brown | National Semifinals | 2 Louisville | L 88-77 |
| Southeast | 12 | Xavier | Pete Gillen | Round of 64 | 5 Alabama | L 97-80 |
| Southeast | 13 | Fairfield | Mitch Buonaguro | Round of 64 | 4 Illinois | L 75-51 |
| Southeast | 14 | Ball State | Al Brown | Round of 64 | 3 Memphis | L 95-63 |
| Southeast | 15 | Marist | Matt Furjanic | Round of 64 | 2 Georgia Tech | L 68-53 |
| Southeast | 16 | Davidson | Bobby Hussey | Round of 64 | 1 Kentucky | L 75-55 |
| East |  |  |  |  |  |  |
| East | 1 | Duke | Mike Krzyzewski | Runner Up | 2 Louisville | L 72-69 |
| East | 2 | Syracuse | Jim Boeheim | Round of 32 | 7 Navy | L 97-85 |
| East | 3 | Indiana | Bob Knight | Round of 64 | 14 Cleveland State | L 83-79 |
| East | 4 | Oklahoma | Billy Tubbs | Round of 32 | 12 DePaul | L 74-69 |
| East | 5 | Virginia | Terry Holland | Round of 64 | 12 DePaul | L 72-68 |
| East | 6 | Saint Joseph's | Jim Boyle | Round of 32 | 14 Cleveland State | L 75-69 |
| East | 7 | Navy | Paul Evans | Regional Runner-up | 1 Duke | L 71-50 |
| East | 8 | Old Dominion | Tom Young | Round of 32 | 1 Duke | L 89-61 |
| East | 9 | West Virginia | Gale Catlett | Round of 64 | 8 Old Dominion | L 72-64 |
| East | 10 | Tulsa | J. D. Barnett | Round of 64 | 7 Navy | L 87-68 |
| East | 11 | Richmond | Dick Tarrant | Round of 64 | 6 Saint Joseph's | L 60-59 |
| East | 12 | DePaul | Joey Meyer | Sweet Sixteen | 1 Duke | L 74-67 |
| East | 13 | Northeastern | Jim Calhoun | Round of 64 | 4 Oklahoma | L 80-74 |
| East | 14 | Cleveland State | Kevin Mackey | Sweet Sixteen | 7 Navy | L 71-70 |
| East | 15 | Brown | Mike Cingiser | Round of 64 | 2 Syracuse | L 101-52 |
| East | 16 | Mississippi Valley State | Lafayette Stribling | Round of 64 | 1 Duke | L 85-78 |
Question:
how many number of teams played altogether?
Answer:
64