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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 108 |
| 3 | 19996 |
| 4 | 2348840 |
| 5 | 261026756 |
| 6 | 28716109350 |
| 7 | 3159756711522 |
| 8 | 347321368287746 |
| 9 | 38183785495750352 |
| 10 | 4197613545581221410 |
| 11 | 461451167556083194646 |
| 12 | 50728172936710501676214 |
| 13 | 5576636888940842482458762 |
[0,108,19996,2348840,261026756,28716109350, 3159756711522,347321368287746,38183785495750352, 4197613545581221410,461451167556083194646, 50728172936710501676214,5576636888940842482458762] |