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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 54 |
| 4 | 128124 |
| 5 | 40241088 |
| 6 | 5904797049 |
| 7 | 592030140912 |
| 8 | 47871255785661 |
| 9 | 3399596932632516 |
| 10 | 222507204130403730 |
| 11 | 13816730633213564154 |
| 12 | 828855022115369147634 |
| 13 | 48598186867956968680368 |
| 14 | 2806334420165022553155783 |
| 15 | 160409202733612103932779012 |
| 16 | 9106532681255976991378628043 |
[0,0,54,128124,40241088,5904797049,592030140912, 47871255785661,3399596932632516, 222507204130403730,13816730633213564154, 828855022115369147634,48598186867956968680368, 2806334420165022553155783, 160409202733612103932779012, 9106532681255976991378628043] |