| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 3 |
| 3 | 9 |
| 4 | 0 |
| 5 | 1 |
| 6 | 27 |
| 7 | 6 |
| 8 | 0 |
| 9 | 3 |
| 10 | 90 |
| 11 | 18 |
| 12 | 27 |
| 13 | 0 |
| 14 | 2 |
| 15 | 297 |
| 16 | 135 |
| 17 | 81 |
| 18 | 24 |
| 19 | 0 |
| 20 | 6 |
| 21 | 1053 |
| 22 | 648 |
| 23 | 351 |
| 24 | 72 |
| 25 | 90 |
| 26 | 0 |
| 27 | 5 |
| 28 | 3888 |
| 29 | 2889 |
| 30 | 1377 |
| 31 | 756 |
| 32 | 270 |
| 33 | 90 |
| 34 | 0 |
| 35 | 15 |
| 36 | 14742 |
| 37 | 12150 |
| 38 | 6723 |
| 39 | 3888 |
| 40 | 1485 |
| 41 | 270 |
| 42 | 315 |
| 43 | 0 |
| 44 | 14 |
| 45 | 56619 |
| 46 | 51273 |
| 47 | 32805 |
| 48 | 19224 |
| 49 | 6480 |
| 50 | 3645 |
| 51 | 945 |
| 52 | 336 |
| 53 | 0 |
| 54 | 42 |
| 55 | 219429 |
| 56 | 218700 |
[1,0,3,9,0,1,27,6,0,3,90,18,27,0,2,297,135,81,24, 0,6,1053,648,351,72,90,0,5,3888,2889,1377,756,270, 90,0,15,14742,12150,6723,3888,1485,270,315,0,14, 56619,51273,32805,19224,6480,3645,945,336,0,42, 219429,218700] |