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| n | a(n) |
|---|---|
| 1 | 256 |
| 2 | 63248 |
| 3 | 14747432 |
| 4 | 2868497664 |
| 5 | 531085813392 |
| 6 | 96355251717448 |
| 7 | 17357082345304488 |
| 8 | 3117995723618536688 |
| 9 | 559512460883072543600 |
| 10 | 100360499121740164572128 |
| 11 | 17998859155386688463327688 |
[256,63248,14747432,2868497664,531085813392, 96355251717448,17357082345304488, 3117995723618536688,559512460883072543600, 100360499121740164572128, 17998859155386688463327688] |