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| n | a(n) |
|---|---|
| 0 | 25 |
| 1 | 26 |
| 2 | 103 |
| 3 | 335 |
| 4 | 1778 |
| 5 | 3891 |
| 6 | 9560 |
| 7 | 13451 |
| 8 | 23011 |
| 9 | 59473 |
| 10 | 82484 |
| 11 | 471893 |
| 12 | 554377 |
| 13 | 1580647 |
| 14 | 2135024 |
| 15 | 3715671 |
| 16 | 9566366 |
| 17 | 22848403 |
| 18 | 123808381 |
| 19 | 394273546 |
| 20 | 1306629019 |
| 21 | 1700902565 |
| 22 | 86351757269 |
| 23 | 88052659834 |
[25,26,103,335,1778,3891,9560,13451,23011,59473, 82484,471893,554377,1580647,2135024,3715671, 9566366,22848403,123808381,394273546,1306629019, 1700902565,86351757269,88052659834] |