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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 3 |
| 3 | 0 |
| 4 | 3 |
| 5 | 9 |
| 6 | 0 |
| 7 | 9 |
| 8 | 27 |
| 9 | 33 |
| 10 | 0 |
| 11 | 15 |
| 12 | 159 |
| 13 | 231 |
| 14 | 129 |
| 15 | 0 |
| 16 | 33 |
| 17 | 825 |
| 18 | 3411 |
| 19 | 1971 |
| 20 | 513 |
| 21 | 0 |
| 22 | 63 |
| 23 | 4395 |
| 24 | 44487 |
| 25 | 73857 |
| 26 | 16815 |
| 27 | 2049 |
| 28 | 0 |
| 29 | 129 |
| 30 | 23307 |
| 31 | 596973 |
| 32 | 2432241 |
| 33 | 1603431 |
| 34 | 143451 |
| 35 | 8193 |
| 36 | 0 |
| 37 | 255 |
| 38 | 123729 |
| 39 | 7957785 |
| 40 | 82359177 |
| 41 | 133265847 |
| 42 | 34825803 |
| 43 | 1223799 |
| 44 | 32769 |
| 45 | 0 |
| 46 | 513 |
[0,3,0,3,9,0,9,27,33,0,15,159,231,129,0,33,825, 3411,1971,513,0,63,4395,44487,73857,16815,2049,0, 129,23307,596973,2432241,1603431,143451,8193,0, 255,123729,7957785,82359177,133265847,34825803, 1223799,32769,0,513] |