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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 6 |
| 6 | 12 |
| 7 | 17 |
| 8 | 48 |
| 9 | 52 |
| 10 | 200 |
| 11 | 162 |
| 12 | 848 |
| 13 | 502 |
| 14 | 3631 |
| 15 | 1605 |
| 16 | 15730 |
| 17 | 5063 |
| 18 | 68501 |
| 19 | 16314 |
| 20 | 300199 |
| 21 | 52203 |
| 22 | 1320571 |
| 23 | 169128 |
| 24 | 5831378 |
| 25 | 547153 |
| 26 | 25825144 |
| 27 | 1782944 |
| 28 | 114682172 |
| 29 | 5817259 |
| 30 | 510476945 |
| 31 | 19066119 |
| 32 | 2277257478 |
| 33 | 62627721 |
| 34 | 10179548297 |
| 35 | 206383073 |
| 36 | 45590331780 |
| 37 | 681724709 |
| 38 | 204548718149 |
| 39 | 2257730658 |
[1,1,2,3,6,12,17,48,52,200,162,848,502,3631,1605, 15730,5063,68501,16314,300199,52203,1320571, 169128,5831378,547153,25825144,1782944,114682172, 5817259,510476945,19066119,2277257478,62627721, 10179548297,206383073,45590331780,681724709, 204548718149,2257730658] |