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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 188 |
| 2 | 17672 |
| 3 | 1107508 |
| 4 | 52061712 |
| 5 | 1958184876 |
| 6 | 61391167256 |
| 7 | 1650190052644 |
| 8 | 38825509612576 |
| 9 | 812305237503644 |
| 10 | 15302398872758568 |
| 11 | 262196521383285780 |
| 12 | 4120497500732109360 |
| 13 | 59810591682527131020 |
| 14 | 806702657594563281720 |
[1,188,17672,1107508,52061712,1958184876, 61391167256,1650190052644,38825509612576, 812305237503644,15302398872758568, 262196521383285780,4120497500732109360, 59810591682527131020,806702657594563281720] |