Table:
0
A
B
C
D
E
1
Week
Date
Opponent
Result
Attendance
2
1
September 19, 1971
at New England Patriots
L 20–6
55,405
3
2
September 26, 1971
at San Diego Chargers
W 34–0
54,084
4
3
October 4, 1971
at Cleveland Browns
W 34–20
84,285
5
4
October 10, 1971
at Denver Broncos
W 27–16
51,200
6
5
October 17, 1971
Philadelphia Eagles
W 34–10
54,615
7
6
October 24, 1971
Cincinnati Bengals
W 31–27
54,699
8
7
October 31, 1971
Kansas City Chiefs
T 20–20
54,715
9
8
November 7, 1971
at New Orleans Saints
T 21–21
83,102
10
9
November 14, 1971
Houston Oilers
W 41–21
54,705
11
10
November 21, 1971
San Diego Chargers
W 34–33
54,681
12
11
November 28, 1971
Baltimore Colts
L 37–14
54,689
13
12
December 5, 1971
at Atlanta Falcons
L 24–13
58,850
14
13
December 12, 1971
at Kansas City Chiefs
L 16–14
51,215
15
14
December 19, 1971
Denver Broncos
W 21–13
54,651

Questions and formulas:
Question: What was the attendance on September 19, 1971, after week 1?
Formula: SUM(FILTER(E1, (B1="september 19, 1971")*(A1>1)))
Formula2: SUM(FILTER(E2:E15, (B2:B15="september 19, 1971")*(A2:A15>1)))
Level: easy