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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 2 |
| 3 | 6 |
| 4 | 1 |
| 5 | 9 |
| 6 | 23 |
| 7 | 2 |
| 8 | 34 |
| 9 | 88 |
| 10 | 9 |
| 11 | 131 |
| 12 | 339 |
| 13 | 34 |
| 14 | 504 |
| 15 | 1304 |
| 16 | 131 |
| 17 | 1939 |
| 18 | 5017 |
| 19 | 504 |
| 20 | 7460 |
| 21 | 19302 |
| 22 | 1939 |
| 23 | 28701 |
| 24 | 74261 |
| 25 | 7460 |
| 26 | 110422 |
| 27 | 285706 |
| 28 | 28701 |
| 29 | 424829 |
| 30 | 1099203 |
| 31 | 110422 |
| 32 | 1634454 |
| 33 | 4228988 |
| 34 | 424829 |
| 35 | 6288271 |
| 36 | 16270279 |
| 37 | 1634454 |
| 38 | 24193004 |
| 39 | 62597004 |
[1,0,2,6,1,9,23,2,34,88,9,131,339,34,504,1304,131, 1939,5017,504,7460,19302,1939,28701,74261,7460, 110422,285706,28701,424829,1099203,110422,1634454, 4228988,424829,6288271,16270279,1634454,24193004, 62597004] |