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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 1085 |
| 3 | 22568 |
| 4 | 247845 |
| 5 | 1383096 |
| 6 | 4414865 |
| 7 | 8280720 |
| 8 | 9398115 |
| 9 | 6440560 |
| 10 | 2648919 |
| 11 | 628680 |
| 12 | 82615 |
| 13 | 5208 |
| 14 | 155 |
[1,0,1085,22568,247845,1383096,4414865,8280720, 9398115,6440560,2648919,628680,82615,5208,155] |