The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 2 |
| 3 | 6 |
| 4 | 4 |
| 5 | 20 |
| 6 | 12 |
| 7 | 66 |
| 8 | 46 |
| 9 | 20 |
| 10 | 12 |
| 11 | 4 |
| 12 | 72 |
| 13 | 48 |
| 14 | 36 |
| 15 | 24 |
| 16 | 8 |
| 17 | 4 |
| 18 | 44 |
| 19 | 16 |
| 20 | 374 |
| 21 | 202 |
| 22 | 146 |
| 23 | 76 |
| 24 | 36 |
| 25 | 20 |
| 26 | 8 |
| 27 | 4 |
| 28 | 242 |
| 29 | 132 |
| 30 | 72 |
| 31 | 28 |
| 32 | 688 |
| 33 | 440 |
| 34 | 292 |
[1,2,2,6,4,20,12,66,46,20,12,4,72,48,36,24,8,4,44, 16,374,202,146,76,36,20,8,4,242,132,72,28,688,440, 292] |