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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 4 |
| 4 | 27 |
| 5 | 32 |
| 6 | 28125 |
| 7 | 2519424 |
| 8 | 23162146875 |
| 9 | 458647142400000 |
| 10 | 7850009286973311176250 |
| 11 | 14754517327872000000000000000 |
| 12 | 782831631808408787429183093888778240000 |
| 13 | 14334253326826803757070581682405376000000000000000 |
| 14 | 6615519361823637433520391368199431823532478208000000000000000 |
[1,1,4,27,32,28125,2519424,23162146875, 458647142400000,7850009286973311176250, 14754517327872000000000000000, 782831631808408787429183093888778240000, 14334253326826803757070581682405376000000000000000\ , 66155193618236374335203913681994318235324782080000\ 00000000000] |