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| n | a(n) |
|---|---|
| 0 | 7 |
| 1 | -37 |
| 2 | 19899 |
| 3 | -235225 |
| 4 | 268989175 |
| 5 | -4985687133 |
| 6 | 1052143756587 |
| 7 | -25075299330081 |
| 8 | 71491170131441775 |
| 9 | -1979286926244381325 |
| 10 | 319756423353994489291 |
| 11 | -9700423363591011143001 |
| 12 | 5919065321069316557189503 |
| 13 | -189993537046726536185033125 |
[7,-37,19899,-235225,268989175,-4985687133, 1052143756587,-25075299330081,71491170131441775, -1979286926244381325,319756423353994489291, -9700423363591011143001,5919065321069316557189503, -189993537046726536185033125] |