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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 7 |
| 5 | 5 |
| 6 | 17 |
| 7 | 47 |
| 8 | 13 |
| 9 | 217 |
| 10 | 295 |
| 11 | 139 |
| 12 | 1909 |
| 13 | 1631 |
| 14 | 3299 |
| 15 | 13085 |
| 16 | 6487 |
| 17 | 46075 |
| 18 | 84997 |
| 19 | 7153 |
| 20 | 517135 |
| 21 | 502829 |
| 22 | 588665 |
| 23 | 3605639 |
| 24 | 2428309 |
| 25 | 9492289 |
| 26 | 24062143 |
| 27 | 5077565 |
| 28 | 118985033 |
| 29 | 149450423 |
| 30 | 88519643 |
| 31 | 985222181 |
| 32 | 808182895 |
| 33 | 1870418611 |
[0,1,1,1,7,5,17,47,13,217,295,139,1909,1631,3299, 13085,6487,46075,84997,7153,517135,502829,588665, 3605639,2428309,9492289,24062143,5077565, 118985033,149450423,88519643,985222181,808182895, 1870418611] |