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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 5 |
| 3 | 0 |
| 4 | 29 |
| 5 | 8 |
| 6 | 85 |
| 7 | 40 |
| 8 | 261 |
| 9 | 232 |
| 10 | 1365 |
| 11 | 424 |
| 12 | 6917 |
| 13 | 5864 |
| 14 | 341 |
| 15 | 63912 |
| 16 | 4869 |
| 17 | 238312 |
| 18 | 119893 |
| 19 | 690856 |
| 20 | 417541 |
| 21 | 2671336 |
| 22 | 1356117 |
| 23 | 11102632 |
| 24 | 5395205 |
| 25 | 33850088 |
| 26 | 32076885 |
| 27 | 156416680 |
| 28 | 2416389 |
| 29 | 1057596136 |
| 30 | 785600853 |
| 31 | 191007144 |
| 32 | 7932826373 |
| 33 | 3579503336 |
| 34 | 22879261781 |
[1,0,5,0,29,8,85,40,261,232,1365,424,6917,5864, 341,63912,4869,238312,119893,690856,417541, 2671336,1356117,11102632,5395205,33850088, 32076885,156416680,2416389,1057596136,785600853, 191007144,7932826373,3579503336,22879261781] |