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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 3 |
| 4 | 6 |
| 5 | 4 |
| 6 | 19 |
| 7 | 57 |
| 8 | 66 |
| 9 | 29 |
| 10 | 219 |
| 11 | 876 |
| 12 | 1428 |
| 13 | 1116 |
| 14 | 355 |
| 15 | 4231 |
| 16 | 21155 |
| 17 | 44500 |
| 18 | 49070 |
| 19 | 28405 |
| 20 | 6942 |
| 21 | 130023 |
| 22 | 780138 |
| 23 | 2013810 |
| 24 | 2858700 |
| 25 | 2354415 |
| 26 | 1068576 |
| 27 | 209527 |
| 28 | 6129859 |
| 29 | 42909013 |
| 30 | 131457522 |
| 31 | 228345565 |
| 32 | 242894155 |
| 33 | 158322528 |
| 34 | 58628647 |
| 35 | 9535241 |
[1,1,1,3,6,4,19,57,66,29,219,876,1428,1116,355, 4231,21155,44500,49070,28405,6942,130023,780138, 2013810,2858700,2354415,1068576,209527,6129859, 42909013,131457522,228345565,242894155,158322528, 58628647,9535241] |