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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 56 |
| 3 | 133 |
| 4 | 912 |
| 5 | 1463 |
| 6 | 1539 |
| 7 | 6480 |
| 8 | 7371 |
| 9 | 8645 |
| 10 | 24320 |
| 11 | 27664 |
| 12 | 40755 |
| 13 | 51072 |
| 14 | 86184 |
| 15 | 150822 |
| 16 | 152152 |
| 17 | 238602 |
| 18 | 253935 |
| 19 | 293930 |
| 20 | 320112 |
| 21 | 362880 |
| 22 | 365750 |
| 23 | 573440 |
| 24 | 617253 |
| 25 | 861840 |
| 26 | 885248 |
| 27 | 915705 |
| 28 | 980343 |
| 29 | 2273920 |
| 30 | 2282280 |
| 31 | 2785552 |
| 32 | 3424256 |
| 33 | 3635840 |
[1,56,133,912,1463,1539,6480,7371,8645,24320, 27664,40755,51072,86184,150822,152152,238602, 253935,293930,320112,362880,365750,573440,617253, 861840,885248,915705,980343,2273920,2282280, 2785552,3424256,3635840] |