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| n | a(n) |
|---|---|
| 1 | 28 |
| 2 | 5622 |
| 3 | 799632 |
| 4 | 119035112 |
| 5 | 17626884659 |
| 6 | 2611330803361 |
| 7 | 386840503637732 |
| 8 | 57306383975427486 |
| 9 | 8489341273827367120 |
| 10 | 1257607107085271304144 |
| 11 | 186301337661284652338010 |
| 12 | 27598594360590020663604925 |
[28,5622,799632,119035112,17626884659, 2611330803361,386840503637732,57306383975427486, 8489341273827367120,1257607107085271304144, 186301337661284652338010, 27598594360590020663604925] |