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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 6 |
| 4 | 22 |
| 5 | 2 |
| 6 | 94 |
| 7 | 26 |
| 8 | 460 |
| 9 | 260 |
| 10 | 2532 |
| 11 | 2508 |
| 12 | 15420 |
| 13 | 24760 |
| 14 | 140 |
| 15 | 102620 |
| 16 | 254968 |
| 17 | 5292 |
| 18 | 739512 |
| 19 | 2760432 |
| 20 | 128856 |
| 21 | 5729192 |
| 22 | 31547344 |
| 23 | 2640264 |
| 24 | 47429896 |
| 25 | 381339368 |
| 26 | 50186136 |
| 27 | 46200 |
| 28 | 417429800 |
| 29 | 4879612808 |
| 30 | 926494712 |
| 31 | 3483480 |
| 32 | 3888426512 |
| 33 | 66107044176 |
| 34 | 17025751600 |
| 35 | 157068912 |
[1,1,2,6,22,2,94,26,460,260,2532,2508,15420,24760, 140,102620,254968,5292,739512,2760432,128856, 5729192,31547344,2640264,47429896,381339368, 50186136,46200,417429800,4879612808,926494712, 3483480,3888426512,66107044176,17025751600, 157068912] |