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| n | a(n) |
|---|---|
| 1 | 26640 |
| 2 | 1038960 |
| 3 | 1651680 |
| 4 | 5393010 |
| 5 | 7246080 |
| 6 | 64415520 |
| 7 | 282597120 |
| 8 | 476734095360 |
| 9 | 844592855040 |
| 10 | 18592629719040 |
| 11 | 32939121346560 |
| 12 | 124972029225861120 |
| 13 | 486048526115143680 |
| 14 | 2047588591705018859520 |
| 15 | 79855955076495735521280 |
[26640,1038960,1651680,5393010,7246080,64415520, 282597120,476734095360,844592855040, 18592629719040,32939121346560,124972029225861120, 486048526115143680,2047588591705018859520, 79855955076495735521280] |