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| n | a(n) |
|---|---|
| 8 | 1 |
| 9 | 64 |
| 10 | 2521 |
| 11 | 79861 |
| 12 | 2250887 |
| 13 | 59367101 |
| 14 | 1508071384 |
| 15 | 37558353900 |
| 16 | 927716186325 |
| 17 | 22904111472825 |
| 18 | 568209449266202 |
| 19 | 14216730315766814 |
| 20 | 359666061054003144 |
| 21 | 9216708503647774264 |
| 22 | 239524408949706575548 |
| 23 | 6317740398995612513164 |
| 24 | 169207499997274346326579 |
| 25 | 4602911809939402715164066 |
[1,64,2521,79861,2250887,59367101,1508071384, 37558353900,927716186325,22904111472825, 568209449266202,14216730315766814, 359666061054003144,9216708503647774264, 239524408949706575548,6317740398995612513164, 169207499997274346326579, 4602911809939402715164066] |