The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 2 | 2 |
| 3 | 1 |
| 4 | 1 |
| 5 | 8 |
| 6 | 8 |
| 7 | 4 |
| 8 | 4 |
| 9 | 1 |
| 10 | 1 |
| 11 | 111 |
| 12 | 88 |
| 13 | 67 |
| 14 | 55 |
| 15 | 42 |
| 16 | 32 |
| 17 | 23 |
| 18 | 15 |
| 19 | 6 |
| 20 | 3 |
| 21 | 2 |
| 22 | 2470 |
| 23 | 2022 |
| 24 | 1688 |
| 25 | 1358 |
| 26 | 1119 |
| 27 | 880 |
| 28 | 702 |
| 29 | 520 |
| 30 | 393 |
| 31 | 268 |
| 32 | 189 |
| 33 | 122 |
| 34 | 87 |
| 35 | 57 |
| 36 | 48 |
| 37 | 33 |
| 38 | 24 |
| 39 | 11 |
| 40 | 6 |
| 41 | 1 |
[2,1,1,8,8,4,4,1,1,111,88,67,55,42,32,23,15,6,3,2, 2470,2022,1688,1358,1119,880,702,520,393,268,189, 122,87,57,48,33,24,11,6,1] |