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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 1 |
| 5 | 6 |
| 6 | 6 |
| 7 | 12 |
| 8 | 36 |
| 9 | 12 |
| 10 | 28 |
| 11 | 155 |
| 12 | 147 |
| 13 | 29 |
| 14 | 1 |
| 15 | 56 |
| 16 | 605 |
| 17 | 1208 |
| 18 | 586 |
| 19 | 64 |
| 20 | 1 |
| 21 | 120 |
| 22 | 2160 |
| 23 | 7800 |
| 24 | 7800 |
| 25 | 2160 |
| 26 | 120 |
| 27 | 240 |
| 28 | 7320 |
| 29 | 44160 |
| 30 | 78000 |
| 31 | 44160 |
| 32 | 7320 |
| 33 | 240 |
| 34 | 496 |
| 35 | 23947 |
| 36 | 227623 |
| 37 | 655039 |
| 38 | 655315 |
| 39 | 227569 |
| 40 | 23893 |
| 41 | 517 |
| 42 | 1 |
| 43 | 992 |
| 44 | 76305 |
| 45 | 1102068 |
| 46 | 4868556 |
[0,1,2,1,6,6,12,36,12,28,155,147,29,1,56,605,1208, 586,64,1,120,2160,7800,7800,2160,120,240,7320, 44160,78000,44160,7320,240,496,23947,227623, 655039,655315,227569,23893,517,1,992,76305, 1102068,4868556] |