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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 0 |
| 4 | 0 |
| 5 | 3 |
| 6 | 0 |
| 7 | 3 |
| 8 | 9 |
| 9 | 9 |
| 10 | 0 |
| 11 | 3 |
| 12 | 24 |
| 13 | 50 |
| 14 | 31 |
| 15 | 0 |
| 16 | 9 |
| 17 | 62 |
| 18 | 221 |
| 19 | 296 |
| 20 | 108 |
| 21 | 0 |
| 22 | 15 |
| 23 | 134 |
| 24 | 822 |
| 25 | 1922 |
| 26 | 1650 |
| 27 | 366 |
| 28 | 0 |
| 29 | 31 |
| 30 | 277 |
| 31 | 2669 |
| 32 | 10491 |
| 33 | 15511 |
| 34 | 8666 |
| 35 | 1205 |
| 36 | 0 |
| 37 | 57 |
| 38 | 542 |
| 39 | 8068 |
| 40 | 50690 |
| 41 | 124030 |
| 42 | 118857 |
| 43 | 43543 |
| 44 | 3873 |
| 45 | 0 |
| 46 | 108 |
| 47 | 1035 |
| 48 | 23169 |
| 49 | 226771 |
| 50 | 887491 |
| 51 | 1393359 |
| 52 | 876704 |
| 53 | 211650 |
[0,1,0,0,3,0,3,9,9,0,3,24,50,31,0,9,62,221,296, 108,0,15,134,822,1922,1650,366,0,31,277,2669, 10491,15511,8666,1205,0,57,542,8068,50690,124030, 118857,43543,3873,0,108,1035,23169,226771,887491, 1393359,876704,211650] |