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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 5 |
| 2 | 120 |
| 3 | 2771 |
| 4 | 64120 |
| 5 | 1483771 |
| 6 | 34335480 |
| 7 | 794546793 |
| 8 | 18386363119 |
| 9 | 425473177569 |
| 10 | 9845744025606 |
| 11 | 227837336237557 |
| 12 | 5272313768144476 |
| 13 | 122004992372201577 |
| 14 | 2823280028149695952 |
| 15 | 65332655347676516331 |
| 16 | 1511842896283885073147 |
[0,5,120,2771,64120,1483771,34335480,794546793, 18386363119,425473177569,9845744025606, 227837336237557,5272313768144476, 122004992372201577,2823280028149695952, 65332655347676516331,1511842896283885073147] |