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| n | a(n) |
|---|---|
| 6 | 4051 |
| 7 | 111396 |
| 8 | 1830822 |
| 9 | 23420022 |
| 10 | 257667120 |
| 11 | 2564003346 |
| 12 | 23761098837 |
| 13 | 208907298660 |
| 14 | 1764392910027 |
| 15 | 14440938630576 |
| 16 | 115269796672350 |
| 17 | 901599089475150 |
| 18 | 6935143271107130 |
| 19 | 52608326918749428 |
| 20 | 394424679767297550 |
| 21 | 2927811687630339744 |
| 22 | 21547773469006784856 |
[4051,111396,1830822,23420022,257667120, 2564003346,23761098837,208907298660,1764392910027, 14440938630576,115269796672350,901599089475150, 6935143271107130,52608326918749428, 394424679767297550,2927811687630339744, 21547773469006784856] |