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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 14 |
| 3 | 290 |
| 4 | 16654 |
| 5 | 2487202 |
| 6 | 916292622 |
| 7 | 801308046114 |
| 8 | 1618342215277838 |
| 9 | 7398618880762147490 |
| 10 | 75427503900622910066190 |
| 11 | 1695072499481604881387820578 |
| 12 | 83204183269315611109025907220238 |
| 13 | 8854418165429899481934158557358648738 |
[1,2,14,290,16654,2487202,916292622,801308046114, 1618342215277838,7398618880762147490, 75427503900622910066190, 1695072499481604881387820578, 83204183269315611109025907220238, 8854418165429899481934158557358648738] |