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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 94 |
| 3 | 1678 |
| 4 | 19854 |
| 5 | 186987 |
| 6 | 1548002 |
| 7 | 11947350 |
| 8 | 87562135 |
| 9 | 605431820 |
| 10 | 3905165468 |
| 11 | 23355599964 |
| 12 | 129475795828 |
| 13 | 667503759881 |
| 14 | 3215875683718 |
| 15 | 14555156486463 |
| 16 | 62204964640341 |
| 17 | 252211338710097 |
| 18 | 974245904884957 |
| 19 | 3598868691539578 |
[1,94,1678,19854,186987,1548002,11947350,87562135, 605431820,3905165468,23355599964,129475795828, 667503759881,3215875683718,14555156486463, 62204964640341,252211338710097,974245904884957, 3598868691539578] |