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| n | a(n) |
|---|---|
| 1 | 124 |
| 2 | 1012 |
| 3 | 8304 |
| 4 | 68180 |
| 5 | 559788 |
| 6 | 4596072 |
| 7 | 37735460 |
| 8 | 309822148 |
| 9 | 2543754976 |
| 10 | 20885173732 |
| 11 | 171475038268 |
| 12 | 1407873792488 |
| 13 | 11559167069396 |
| 14 | 94905057577684 |
| 15 | 779205793959872 |
| 16 | 6397569158457620 |
| 17 | 52526420432849004 |
| 18 | 431261433077432552 |
[124,1012,8304,68180,559788,4596072,37735460, 309822148,2543754976,20885173732,171475038268, 1407873792488,11559167069396,94905057577684, 779205793959872,6397569158457620, 52526420432849004,431261433077432552] |