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| n | a(n) |
|---|---|
| 1 | 64 |
| 2 | 101 |
| 3 | 431 |
| 4 | 3186 |
| 5 | 23348 |
| 6 | 176673 |
| 7 | 1321695 |
| 8 | 9959836 |
| 9 | 75112075 |
| 10 | 566241938 |
| 11 | 4269343299 |
| 12 | 32193597374 |
| 13 | 242759393636 |
| 14 | 1830541536206 |
| 15 | 13803437729415 |
| 16 | 104086731979129 |
| 17 | 784879875501723 |
| 18 | 5918493129030554 |
| 19 | 44629209229558533 |
[64,101,431,3186,23348,176673,1321695,9959836, 75112075,566241938,4269343299,32193597374, 242759393636,1830541536206,13803437729415, 104086731979129,784879875501723,5918493129030554, 44629209229558533] |