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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 6 |
| 6 | 0 |
| 7 | 0 |
| 8 | 34 |
| 9 | 34 |
| 10 | 0 |
| 11 | 0 |
| 12 | 218 |
| 13 | 534 |
| 14 | 218 |
| 15 | 0 |
| 16 | 0 |
| 17 | 1386 |
| 18 | 9162 |
| 19 | 9162 |
| 20 | 1386 |
| 21 | 0 |
| 22 | 0 |
| 23 | 8810 |
| 24 | 157200 |
| 25 | 438284 |
| 26 | 157200 |
| 27 | 8810 |
| 28 | 0 |
| 29 | 0 |
| 30 | 56010 |
| 31 | 2696012 |
| 32 | 20948996 |
| 33 | 20948996 |
| 34 | 2696012 |
| 35 | 56010 |
| 36 | 0 |
| 37 | 0 |
| 38 | 356074 |
| 39 | 46237080 |
| 40 | 1000237228 |
| 41 | 2788320240 |
| 42 | 1000237228 |
| 43 | 46237080 |
[0,0,0,0,6,0,0,34,34,0,0,218,534,218,0,0,1386, 9162,9162,1386,0,0,8810,157200,438284,157200,8810, 0,0,56010,2696012,20948996,20948996,2696012,56010, 0,0,356074,46237080,1000237228,2788320240, 1000237228,46237080] |