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| n | a(n) |
|---|---|
| 1 | 312 |
| 2 | 560 |
| 3 | 588 |
| 4 | 1400 |
| 5 | 85632 |
| 6 | 147492 |
| 7 | 556160 |
| 8 | 569328 |
| 9 | 1590816 |
| 10 | 2013216 |
| 11 | 3343776 |
| 12 | 4695456 |
| 13 | 9745728 |
| 14 | 12558912 |
| 15 | 22013952 |
| 16 | 23336172 |
| 17 | 30002960 |
| 18 | 52021242 |
| 19 | 75007400 |
| 20 | 137617728 |
| 21 | 153587720 |
| 22 | 699117024 |
| 23 | 904683264 |
| 24 | 2468053248 |
| 25 | 2834395104 |
| 26 | 21669802880 |
| 27 | 48444151296 |
[312,560,588,1400,85632,147492,556160,569328, 1590816,2013216,3343776,4695456,9745728,12558912, 22013952,23336172,30002960,52021242,75007400, 137617728,153587720,699117024,904683264, 2468053248,2834395104,21669802880,48444151296] |