The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 3 |
| 5 | 0 |
| 6 | 1 |
| 7 | 10 |
| 8 | 5 |
| 9 | 1 |
| 10 | 21 |
| 11 | 35 |
| 12 | 8 |
| 13 | 36 |
| 14 | 126 |
| 15 | 85 |
| 16 | 64 |
| 17 | 330 |
| 18 | 463 |
| 19 | 243 |
| 20 | 726 |
| 21 | 1717 |
| 22 | 1392 |
| 23 | 1651 |
| 24 | 5019 |
| 25 | 6571 |
| 26 | 5383 |
| 27 | 12832 |
| 28 | 24496 |
| 29 | 23324 |
| 30 | 33321 |
| 31 | 76472 |
| 32 | 98380 |
| 33 | 104653 |
| 34 | 215371 |
| 35 | 362540 |
| 36 | 394897 |
| 37 | 606894 |
| 38 | 1177065 |
| 39 | 1530509 |
| 40 | 1899137 |
| 41 | 3531467 |
| 42 | 5529960 |
| 43 | 6679652 |
| 44 | 10503034 |
[1,0,0,1,3,0,1,10,5,1,21,35,8,36,126,85,64,330, 463,243,726,1717,1392,1651,5019,6571,5383,12832, 24496,23324,33321,76472,98380,104653,215371, 362540,394897,606894,1177065,1530509,1899137, 3531467,5529960,6679652,10503034] |