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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 9 |
| 5 | 1 |
| 6 | 1 |
| 7 | 45 |
| 8 | 45 |
| 9 | 1 |
| 10 | 1 |
| 11 | 165 |
| 12 | 825 |
| 13 | 165 |
| 14 | 1 |
| 15 | 1 |
| 16 | 495 |
| 17 | 9075 |
| 18 | 9075 |
| 19 | 495 |
| 20 | 1 |
| 21 | 1 |
| 22 | 1287 |
| 23 | 70785 |
| 24 | 259545 |
| 25 | 70785 |
| 26 | 1287 |
| 27 | 1 |
| 28 | 1 |
| 29 | 3003 |
| 30 | 429429 |
| 31 | 4723719 |
| 32 | 4723719 |
| 33 | 429429 |
| 34 | 3003 |
| 35 | 1 |
| 36 | 1 |
| 37 | 6435 |
| 38 | 2147145 |
| 39 | 61408347 |
| 40 | 184225041 |
| 41 | 61408347 |
| 42 | 2147145 |
| 43 | 6435 |
| 44 | 1 |
[1,1,1,1,9,1,1,45,45,1,1,165,825,165,1,1,495,9075, 9075,495,1,1,1287,70785,259545,70785,1287,1,1, 3003,429429,4723719,4723719,429429,3003,1,1,6435, 2147145,61408347,184225041,61408347,2147145,6435, 1] |