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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 5 |
| 4 | 1 |
| 5 | 17 |
| 6 | 7 |
| 7 | 74 |
| 8 | 46 |
| 9 | 394 |
| 10 | 311 |
| 11 | 15 |
| 12 | 2484 |
| 13 | 2241 |
| 14 | 315 |
| 15 | 18108 |
| 16 | 17627 |
| 17 | 4585 |
| 18 | 149904 |
| 19 | 152839 |
| 20 | 57897 |
| 21 | 2240 |
| 22 | 1389456 |
| 23 | 1460944 |
| 24 | 705600 |
| 25 | 72800 |
| 26 | 14257440 |
| 27 | 15326180 |
| 28 | 8673060 |
| 29 | 1660120 |
| 30 | 160460640 |
| 31 | 175421214 |
| 32 | 110271546 |
| 33 | 31600800 |
| 34 | 1247400 |
| 35 | 1965444480 |
| 36 | 2177730270 |
| 37 | 1469308698 |
| 38 | 559402272 |
| 39 | 55135080 |
[1,1,2,5,1,17,7,74,46,394,311,15,2484,2241,315, 18108,17627,4585,149904,152839,57897,2240,1389456, 1460944,705600,72800,14257440,15326180,8673060, 1660120,160460640,175421214,110271546,31600800, 1247400,1965444480,2177730270,1469308698, 559402272,55135080] |