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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 61 |
| 3 | 387 |
| 4 | 6742 |
| 5 | 101803 |
| 6 | 1591947 |
| 7 | 24891152 |
| 8 | 389069291 |
| 9 | 6084616648 |
| 10 | 95167937659 |
| 11 | 1488365904621 |
| 12 | 23278593237408 |
| 13 | 364079491696592 |
| 14 | 5694261125691785 |
| 15 | 89059242220010598 |
| 16 | 1392901030975100944 |
| 17 | 21785207695709352714 |
[0,61,387,6742,101803,1591947,24891152,389069291, 6084616648,95167937659,1488365904621, 23278593237408,364079491696592,5694261125691785, 89059242220010598,1392901030975100944, 21785207695709352714] |