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| n | a(n) |
|---|---|
| 1 | 56 |
| 2 | 1248 |
| 3 | 143718 |
| 4 | 14696377 |
| 5 | 1222433026 |
| 6 | 86755752059 |
| 7 | 5432184254977 |
| 8 | 310024709155795 |
| 9 | 16405518197790913 |
| 10 | 811074258908798713 |
| 11 | 37650885062774172715 |
| 12 | 1649171050584662652825 |
| 13 | 68487713712896868019851 |
[56,1248,143718,14696377,1222433026,86755752059, 5432184254977,310024709155795,16405518197790913, 811074258908798713,37650885062774172715, 1649171050584662652825,68487713712896868019851] |