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| n | a(n) |
|---|---|
| 2 | 2620 |
| 3 | 10744 |
| 4 | 66928 |
| 5 | 2082464 |
| 6 | 7677248 |
| 7 | 1750776704 |
| 8 | 749380864 |
| 9 | 7074650624 |
| 10 | 25937232896 |
| 11 | 161899964416 |
| 12 | 3949032574976 |
| 13 | 56691934109696 |
| 14 | 162222327218176 |
| 15 | 5469697508737024 |
| 16 | 21547979005558784 |
| 17 | 48336727662002176 |
[2620,10744,66928,2082464,7677248,1750776704, 749380864,7074650624,25937232896,161899964416, 3949032574976,56691934109696,162222327218176, 5469697508737024,21547979005558784, 48336727662002176] |