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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 1 |
| 6 | 0 |
| 7 | 0 |
| 8 | 9 |
| 9 | 9 |
| 10 | 0 |
| 11 | 0 |
| 12 | 36 |
| 13 | 70 |
| 14 | 36 |
| 15 | 0 |
| 16 | 0 |
| 17 | 100 |
| 18 | 276 |
| 19 | 276 |
| 20 | 100 |
| 21 | 0 |
| 22 | 0 |
| 23 | 225 |
| 24 | 750 |
| 25 | 1038 |
| 26 | 750 |
| 27 | 225 |
| 28 | 0 |
| 29 | 0 |
| 30 | 441 |
| 31 | 1677 |
| 32 | 2788 |
| 33 | 2788 |
| 34 | 1677 |
| 35 | 441 |
| 36 | 0 |
| 37 | 0 |
| 38 | 784 |
| 39 | 3260 |
| 40 | 6190 |
| 41 | 7398 |
| 42 | 6190 |
| 43 | 3260 |
| 44 | 784 |
| 45 | 0 |
| 46 | 0 |
| 47 | 1296 |
| 48 | 5776 |
| 49 | 11942 |
| 50 | 16328 |
| 51 | 16328 |
| 52 | 11942 |
| 53 | 5776 |
| 54 | 1296 |
| 55 | 0 |
| 56 | 0 |
| 57 | 2025 |
| 58 | 9508 |
| 59 | 21062 |
| 60 | 31396 |
| 61 | 35727 |
| 62 | 31396 |
| 63 | 21062 |
| 64 | 9508 |
| 65 | 2025 |
| 66 | 0 |
[0,0,0,0,1,0,0,9,9,0,0,36,70,36,0,0,100,276,276, 100,0,0,225,750,1038,750,225,0,0,441,1677,2788, 2788,1677,441,0,0,784,3260,6190,7398,6190,3260, 784,0,0,1296,5776,11942,16328,16328,11942,5776, 1296,0,0,2025,9508,21062,31396,35727,31396,21062, 9508,2025,0] |