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| n | a(n) |
|---|---|
| 1 | 4720 |
| 2 | 42980 |
| 3 | 391232 |
| 4 | 4090992 |
| 5 | 44020608 |
| 6 | 513164308 |
| 7 | 6042237368 |
| 8 | 74282508252 |
| 9 | 911118071652 |
| 10 | 11443864398344 |
| 11 | 142887133251480 |
| 12 | 1809335874734484 |
| 13 | 22777247634711428 |
| 14 | 289294805586326032 |
| 15 | 3656898565622052808 |
[4720,42980,391232,4090992,44020608,513164308, 6042237368,74282508252,911118071652, 11443864398344,142887133251480,1809335874734484, 22777247634711428,289294805586326032, 3656898565622052808] |