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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 486 |
| 3 | 701100 |
| 4 | 1010986002 |
| 5 | 1457841114072 |
| 6 | 2102205875506110 |
| 7 | 3031379414638696836 |
| 8 | 4371247013703125331690 |
| 9 | 6303335162380492089600432 |
| 10 | 9089404932905655890078491542 |
| 11 | 13106915609914793413001095203420 |
| 12 | 18900163220092199195891689204840386 |
[0,486,701100,1010986002,1457841114072, 2102205875506110,3031379414638696836, 4371247013703125331690,6303335162380492089600432, 9089404932905655890078491542, 13106915609914793413001095203420, 18900163220092199195891689204840386] |