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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 5 |
| 3 | 55 |
| 4 | 1 |
| 5 | 493 |
| 6 | 8 |
| 7 | 3930 |
| 8 | 76 |
| 9 | 27207 |
| 10 | 734 |
| 11 | 9 |
| 12 | 207118 |
| 13 | 7414 |
| 14 | 157 |
| 15 | 1622723 |
| 16 | 71986 |
| 17 | 2064 |
| 18 | 8 |
| 19 | 12544364 |
| 20 | 638499 |
| 21 | 22232 |
| 22 | 259 |
| 23 | 95912510 |
| 24 | 5558790 |
| 25 | 222964 |
| 26 | 3898 |
| 27 | 50 |
| 28 | 732066083 |
| 29 | 47971603 |
| 30 | 2179607 |
| 31 | 49537 |
| 32 | 948 |
| 33 | 8 |
| 34 | 5616480627 |
| 35 | 410502410 |
| 36 | 20604626 |
| 37 | 564498 |
| 38 | 13889 |
| 39 | 180 |
[1,1,5,55,1,493,8,3930,76,27207,734,9,207118,7414, 157,1622723,71986,2064,8,12544364,638499,22232, 259,95912510,5558790,222964,3898,50,732066083, 47971603,2179607,49537,948,8,5616480627,410502410, 20604626,564498,13889,180] |