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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 160 |
| 2 | 12800 |
| 3 | 682720 |
| 4 | 27315200 |
| 5 | 874496032 |
| 6 | 23338104320 |
| 7 | 534067024480 |
| 8 | 10698844067840 |
| 9 | 190617057780640 |
| 10 | 3058431999744512 |
| 11 | 44642243043558880 |
| 12 | 597778600580572160 |
| 13 | 7395049289720822560 |
| 14 | 85027230683021319680 |
[1,160,12800,682720,27315200,874496032, 23338104320,534067024480,10698844067840, 190617057780640,3058431999744512, 44642243043558880,597778600580572160, 7395049289720822560,85027230683021319680] |