The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 40 |
| 2 | 25 |
| 3 | 17 |
| 4 | 12 |
| 5 | 10 |
| 6 | 8 |
| 7 | 7 |
| 8 | 6 |
| 9 | 5 |
| 10 | 5 |
| 11 | 4 |
| 12 | 4 |
| 13 | 3 |
| 14 | 3 |
| 15 | 3 |
| 16 | 3 |
| 17 | 3 |
| 18 | 2 |
| 19 | 2 |
| 20 | 2 |
| 21 | 2 |
| 22 | 2 |
| 23 | 2 |
| 24 | 2 |
| 25 | 2 |
[0,40,25,17,12,10,8,7,6,5,5,4,4,3,3,3,3,3,2,2,2,2, 2,2,2,2] |