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| n | a(n) |
|---|---|
| 1 | 26 |
| 2 | 285 |
| 3 | 3013 |
| 4 | 33297 |
| 5 | 366606 |
| 6 | 3774137 |
| 7 | 35026386 |
| 8 | 290742258 |
| 9 | 2174611745 |
| 10 | 14827903973 |
| 11 | 93194118189 |
| 12 | 544831575434 |
| 13 | 2984722060733 |
| 14 | 15415176834304 |
| 15 | 75441255758231 |
| 16 | 351377507165460 |
| 17 | 1563422116701546 |
| 18 | 6667161613820532 |
[26,285,3013,33297,366606,3774137,35026386, 290742258,2174611745,14827903973,93194118189, 544831575434,2984722060733,15415176834304, 75441255758231,351377507165460,1563422116701546, 6667161613820532] |