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:
| No. in series | No. in season | Title | Directed by | Written by | Storyboarded by | Original air date | Production code |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 21a | 1a | "Panini for President" | Juli Hashiguchi | William Reiss | William Reiss | November6,2008 | 202a |
| 22b | 2b | "The Flying Flinger Lingons" | Eddy Houchins | C.H. Greenblatt and Dave Smith | Dave Smith | November13,2008 | 203b |
| 24 | 4 | "The Arborians" | Kris Sherwood | C.H. Greenblatt, William Reiss and Alex Almaguer | Alex Almaguer | November27,2008 | 201a |
| 26b | 6b | "The Catch Phrase" | Majella Milne | Danielle McCole, C.H. Greenblatt and Brett Varon | Brett Varon | December11,2008 | 205b |
| 27a | 7a | "The Hot Date" | Majella Milne | Darrick Bachman, C.H. Greenblatt and Alex Almaguer | Alex Almaguer | February12,2009 | 206a |
| 28b | 8b | "Won-Ton Bombs" | Mike Milo | Darrick Bachman, C.H. Greenblatt and Brett Varon | Brett Varon | April26,2009 | 207b |
| 29a | 9a | "The Big Hat Biddies" | Kris Sherwood | Darrick Bachman, C.H. Greenblatt and Ian Wasseluk | Ian Wasseluk | April26,2009 | 208a |
| 30b | 10b | "The Trouble with Truffles" | Mike Milo | Brett Varon | Brett Varon | June11,2009 | 210b |
| 31 | 11 | "The Dinner Theater" | Kris Sherwood and Eddy Houchins | Kevin A. Kramer, C.H. Greenblatt and William Reiss | William Reiss | June25,2009 | 211 |
| 32a | 12a | "Kid Shnitzel" | Eddy Houchins | Kevin A. Kramer, C.H. Greenblatt and Ian Wasseluk | Ian Wasseluk | July6,2009 | 209a |
| 33a | 13a | "Big Ball" | Mike Milo | Darrick Bachman, C.H. Greenblatt and Alex Almaguer | Alex Almaguer | July10,2009 | 212a |
| 36a | 16a | "Paint the Town" | Eddy Houchins | Kevin A. Kramer, C.H. Greenblatt and Alex Almaguer | Alex Almaguer | August6,2009 | 215a |
| 36b | 16b | "The Blackout" | Kris Sherwood | Kristina Baranovich and Peter Browngardt | Peter Browngardt | August6,2009 | 215b |
| 37b | 17b | "The Chain Recipe" | Majella Milne | Darrick Bachman and Brett Varon | Brett Varon | August13,2009 | 216b |
| 38b | 18b | "Sheboodles" | Eddy Houchins | Darrick Bachman, C.H. Greenblatt and William Reiss | William Reiss | August20,2009 | 217b |
Question:
What's the production code of the episode with a series number 37b? 
Answer:
216b