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A240421 as a simple table
| n | a(n) |
|---|---|
| 1 | 63 |
| 2 | 2045 |
| 3 | 52711 |
| 4 | 1197511 |
| 5 | 27488435 |
| 6 | 619040901 |
| 7 | 14838256141 |
| 8 | 349768244657 |
| 9 | 8746284074471 |
| 10 | 212768975785239 |
| 11 | 5439041489223935 |
| 12 | 134541898503391615 |
| 13 | 3471367418548587711 |
| 14 | 86596907275765997247 |
| 15 | 2241321207498299744197 |
[63,2045,52711,1197511,27488435,619040901, 14838256141,349768244657,8746284074471, 212768975785239,5439041489223935, 134541898503391615,3471367418548587711, 86596907275765997247,2241321207498299744197] |