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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 13 |
| 3 | 132 |
| 4 | 2453 |
| 5 | 42420 |
| 6 | 794416 |
| 7 | 14511531 |
| 8 | 268456338 |
| 9 | 4940928443 |
| 10 | 91146218920 |
| 11 | 1679743067872 |
| 12 | 30969409565822 |
| 13 | 570877041856787 |
| 14 | 10524153072061784 |
| 15 | 194006638767664141 |
| 16 | 3576453618832667684 |
| 17 | 65930406443303698229 |
[1,13,132,2453,42420,794416,14511531,268456338, 4940928443,91146218920,1679743067872, 30969409565822,570877041856787,10524153072061784, 194006638767664141,3576453618832667684, 65930406443303698229] |