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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 66048 |
| 3 | 64599606 |
| 4 | 8590458880 |
| 5 | 381474609375 |
| 6 | 8463359955456 |
| 7 | 116315398231228 |
| 8 | 1125900443713536 |
| 9 | 8338592593225485 |
| 10 | 50000005000000000 |
| 11 | 252723527218359186 |
| 12 | 1109305584328900608 |
| 13 | 4325208028619914891 |
| 14 | 15245673509292925440 |
| 15 | 49263062956171875000 |
| 16 | 147573953139432226816 |
[0,1,66048,64599606,8590458880,381474609375, 8463359955456,116315398231228,1125900443713536, 8338592593225485,50000005000000000, 252723527218359186,1109305584328900608, 4325208028619914891,15245673509292925440, 49263062956171875000,147573953139432226816] |