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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 4 |
| 2 | 88 |
| 3 | 5014 |
| 4 | 527624 |
| 5 | 89331514 |
| 6 | 22153827556 |
| 7 | 7576868616438 |
| 8 | 3416549387012336 |
| 9 | 1964348168375260594 |
| 10 | 1402481265951220466076 |
| 11 | 1217416473808119071396046 |
| 12 | 1262628491065344385303595816 |
[1,4,88,5014,527624,89331514,22153827556, 7576868616438,3416549387012336, 1964348168375260594,1402481265951220466076, 1217416473808119071396046, 1262628491065344385303595816] |