| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 0 |
| 9 | 0 |
| 10 | 0 |
| 11 | 0 |
| 12 | 0 |
| 13 | 0 |
| 14 | 0 |
| 15 | 0 |
| 16 | 0 |
| 17 | 945 |
| 18 | 0 |
| 19 | 0 |
| 20 | 2205 |
| 21 | 0 |
| 22 | 0 |
| 23 | 2835 |
| 24 | 0 |
| 25 | 0 |
| 26 | 15435 |
| 27 | 0 |
| 28 | 0 |
| 29 | 8505 |
| 30 | 0 |
| 31 | 0 |
| 32 | 108045 |
| 33 | 0 |
| 34 | 0 |
| 35 | 11025 |
| 36 | 25515 |
| 37 | 0 |
| 38 | 46305 |
| 39 | 0 |
| 40 | 0 |
| 41 | 756315 |
| 42 | 0 |
| 43 | 0 |
| 44 | 81675 |
| 45 | 76545 |
| 46 | 0 |
| 47 | 324135 |
| 48 | 0 |
| 49 | 0 |
| 50 | 5294205 |
| 51 | 0 |
| 52 | 0 |
| 53 | 540225 |
| 54 | 229635 |
| 55 | 0 |
| 56 | 2268945 |
| 57 | 0 |
| 58 | 0 |
| 59 | 898425 |
| 60 | 37059435 |
| 61 | 0 |
| 62 | 972405 |
| 63 | 0 |
| 64 | 3781575 |
| 65 | 688905 |
| 66 | 0 |
| 67 | 0 |
| 68 | 15882615 |
| 69 | 0 |
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,945,0,0,2205,0,0, 2835,0,0,15435,0,0,8505,0,0,108045,0,0,11025, 25515,0,46305,0,0,756315,0,0,81675,76545,0,324135, 0,0,5294205,0,0,540225,229635,0,2268945,0,0, 898425,37059435,0,972405,0,3781575,688905,0,0, 15882615,0] |
