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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 26 |
| 3 | 3363 |
| 4 | 937444 |
| 5 | 456335045 |
| 6 | 343904160606 |
| 7 | 371198523608647 |
| 8 | 543466014742175624 |
| 9 | 1036834190110356583689 |
| 10 | 2499384905955651114739810 |
| 11 | 7429238104512325157021090411 |
| 12 | 26695718139185294187938997247212 |
[0,1,26,3363,937444,456335045,343904160606, 371198523608647,543466014742175624, 1036834190110356583689,2499384905955651114739810, 7429238104512325157021090411, 26695718139185294187938997247212] |