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| n | a(n) |
|---|---|
| 1 | 256 |
| 2 | 2248 |
| 3 | 20000 |
| 4 | 175096 |
| 5 | 1538144 |
| 6 | 13525664 |
| 7 | 118990080 |
| 8 | 1045666976 |
| 9 | 9189157840 |
| 10 | 80777516672 |
| 11 | 710143327296 |
| 12 | 6242142152960 |
| 13 | 54866901910784 |
| 14 | 482290009045120 |
| 15 | 4239509147919360 |
| 16 | 37265899068310016 |
| 17 | 327571084007019264 |
[256,2248,20000,175096,1538144,13525664,118990080, 1045666976,9189157840,80777516672,710143327296, 6242142152960,54866901910784,482290009045120, 4239509147919360,37265899068310016, 327571084007019264] |