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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 1 |
| 3 | 26 |
| 4 | 20481 |
| 5 | 774403124 |
| 6 | 2173797080953345 |
| 7 | 645067515585218711490294 |
| 8 | 27280857986486289638369834192338945 |
| 9 | 213095986405176211170558965907644717041658073416 |
| 10 | 386654453940903446694477049963665295677203885863801760000000001 |
[1,0,1,26,20481,774403124,2173797080953345, 645067515585218711490294, 27280857986486289638369834192338945, 213095986405176211170558965907644717041658073416, 38665445394090344669447704996366529567720388586380\ 1760000000001] |