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| n | a(n) |
|---|---|
| 1 | 340 |
| 2 | 9016 |
| 3 | 72772 |
| 4 | 542940 |
| 5 | 4044156 |
| 6 | 30029860 |
| 7 | 225444912 |
| 8 | 1691502456 |
| 9 | 12779302796 |
| 10 | 96726712256 |
| 11 | 733594037948 |
| 12 | 5585468980116 |
| 13 | 42451575314372 |
| 14 | 324411240385960 |
| 15 | 2468510420444928 |
| 16 | 18903703259295268 |
| 17 | 143946266428000640 |
[340,9016,72772,542940,4044156,30029860,225444912, 1691502456,12779302796,96726712256,733594037948, 5585468980116,42451575314372,324411240385960, 2468510420444928,18903703259295268, 143946266428000640] |