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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 0 |
| 4 | 8 |
| 5 | 7 |
| 6 | 5 |
| 7 | 2 |
| 8 | 0 |
| 9 | 172 |
| 10 | 150 |
| 11 | 121 |
| 12 | 87 |
| 13 | 52 |
| 14 | 22 |
| 15 | 0 |
| 16 | 7296 |
| 17 | 6440 |
| 18 | 5464 |
| 19 | 4411 |
| 20 | 3337 |
| 21 | 2306 |
| 22 | 1380 |
| 23 | 604 |
| 24 | 0 |
| 25 | 518324 |
| 26 | 463578 |
| 27 | 405024 |
| 28 | 344260 |
| 29 | 283073 |
| 30 | 223333 |
| 31 | 166856 |
| 32 | 115250 |
| 33 | 69772 |
| 34 | 31238 |
| 35 | 0 |
| 36 | 55717312 |
| 37 | 50416894 |
| 38 | 44928220 |
| 39 | 39348036 |
| 40 | 33777456 |
| 41 | 28318137 |
| 42 | 23068057 |
| 43 | 18117190 |
| 44 | 13543456 |
| 45 | 9409366 |
| 46 | 5759740 |
| 47 | 2620708 |
| 48 | 0 |
[1,1,1,0,8,7,5,2,0,172,150,121,87,52,22,0,7296, 6440,5464,4411,3337,2306,1380,604,0,518324,463578, 405024,344260,283073,223333,166856,115250,69772, 31238,0,55717312,50416894,44928220,39348036, 33777456,28318137,23068057,18117190,13543456, 9409366,5759740,2620708,0] |