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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 48 |
| 3 | 225 |
| 4 | 8708 |
| 5 | 79026 |
| 6 | 2108980 |
| 7 | 28314236 |
| 8 | 639018151 |
| 9 | 10652923659 |
| 10 | 224611274898 |
| 11 | 4205037878532 |
| 12 | 86943916408794 |
| 13 | 1731464344049192 |
| 14 | 35851466896552009 |
[1,48,225,8708,79026,2108980,28314236,639018151, 10652923659,224611274898,4205037878532, 86943916408794,1731464344049192,35851466896552009] |