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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 36 |
| 2 | 835 |
| 3 | 15870 |
| 4 | 269041 |
| 5 | 4235856 |
| 6 | 63339535 |
| 7 | 911961090 |
| 8 | 12757140781 |
| 9 | 174463937076 |
| 10 | 2343013658635 |
| 11 | 31002931521510 |
| 12 | 405218193255721 |
| 13 | 5241917197644696 |
| 14 | 67218151176880135 |
| 15 | 855512978401565130 |
[1,36,835,15870,269041,4235856,63339535,911961090, 12757140781,174463937076,2343013658635, 31002931521510,405218193255721,5241917197644696, 67218151176880135,855512978401565130] |