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| n | a(n) |
|---|---|
| 0 | 15 |
| 1 | 31 |
| 2 | 46 |
| 3 | 77 |
| 4 | 585 |
| 5 | 5927 |
| 6 | 42074 |
| 7 | 48001 |
| 8 | 90075 |
| 9 | 228151 |
| 10 | 6934605 |
| 11 | 14097361 |
| 12 | 21031966 |
| 13 | 35129327 |
| 14 | 266937255 |
| 15 | 2704501877 |
| 16 | 19198450394 |
| 17 | 21902952271 |
| 18 | 41101402665 |
| 19 | 104105757601 |
| 20 | 3164274130695 |
| 21 | 6432654018991 |
| 22 | 9596928149686 |
| 23 | 16029582168677 |
| 24 | 121804003330425 |
[15,31,46,77,585,5927,42074,48001,90075,228151, 6934605,14097361,21031966,35129327,266937255, 2704501877,19198450394,21902952271,41101402665, 104105757601,3164274130695,6432654018991, 9596928149686,16029582168677,121804003330425] |