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| n | a(n) |
|---|---|
| 1 | 64 |
| 2 | 2816 |
| 3 | 49924 |
| 4 | 1489917 |
| 5 | 42865601 |
| 6 | 1119189256 |
| 7 | 30968693109 |
| 8 | 851752858746 |
| 9 | 23200520913631 |
| 10 | 635915486887512 |
| 11 | 17414698256902544 |
| 12 | 476456224450550450 |
| 13 | 13044303755666285002 |
| 14 | 357081400450123268030 |
| 15 | 9774047357323889529074 |
[64,2816,49924,1489917,42865601,1119189256, 30968693109,851752858746,23200520913631, 635915486887512,17414698256902544, 476456224450550450,13044303755666285002, 357081400450123268030,9774047357323889529074] |