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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 9 |
| 6 | 2 |
| 7 | 4 |
| 8 | 116 |
| 9 | 116 |
| 10 | 4 |
| 11 | 6 |
| 12 | 900 |
| 13 | 7264 |
| 14 | 900 |
| 15 | 6 |
| 16 | 13 |
| 17 | 7836 |
| 18 | 295264 |
| 19 | 295264 |
| 20 | 7836 |
| 21 | 13 |
| 22 | 24 |
| 23 | 71865 |
| 24 | 12838276 |
| 25 | 54113236 |
| 26 | 12838276 |
| 27 | 71865 |
| 28 | 24 |
| 29 | 45 |
| 30 | 640513 |
| 31 | 577290185 |
| 32 | 10523263424 |
| 33 | 10523263424 |
| 34 | 577290185 |
| 35 | 640513 |
| 36 | 45 |
| 37 | 84 |
| 38 | 5706113 |
| 39 | 25631148992 |
[0,1,1,2,9,2,4,116,116,4,6,900,7264,900,6,13,7836, 295264,295264,7836,13,24,71865,12838276,54113236, 12838276,71865,24,45,640513,577290185,10523263424, 10523263424,577290185,640513,45,84,5706113, 25631148992] |