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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 24 |
| 2 | 403 |
| 3 | 5886 |
| 4 | 80113 |
| 5 | 1046748 |
| 6 | 13329631 |
| 7 | 166873722 |
| 8 | 2064748525 |
| 9 | 25337358072 |
| 10 | 309091680859 |
| 11 | 3754490630358 |
| 12 | 45462401712937 |
| 13 | 549225447909396 |
| 14 | 6623795021132887 |
| 15 | 79783347069641394 |
| 16 | 960080426180248549 |
[1,24,403,5886,80113,1046748,13329631,166873722, 2064748525,25337358072,309091680859,3754490630358, 45462401712937,549225447909396,6623795021132887, 79783347069641394,960080426180248549] |