The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 1 |
| 5 | 3 |
| 6 | 3 |
| 7 | 1 |
| 8 | 5 |
| 9 | 6 |
| 10 | 4 |
| 11 | 1 |
| 12 | 10 |
| 13 | 16 |
| 14 | 10 |
| 15 | 5 |
| 16 | 1 |
| 17 | 28 |
| 18 | 76 |
| 19 | 40 |
| 20 | 15 |
| 21 | 6 |
| 22 | 1 |
| 23 | 154 |
| 24 | 1216 |
| 25 | 430 |
| 26 | 85 |
| 27 | 21 |
| 28 | 7 |
| 29 | 1 |
| 30 | 3520 |
| 31 | 247456 |
| 32 | 37324 |
| 33 | 1870 |
| 34 | 161 |
| 35 | 28 |
| 36 | 8 |
| 37 | 1 |
| 38 | 1551880 |
[1,1,2,1,3,3,1,5,6,4,1,10,16,10,5,1,28,76,40,15,6, 1,154,1216,430,85,21,7,1,3520,247456,37324,1870, 161,28,8,1,1551880] |