The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 5 |
| 5 | 7 |
| 6 | 12 |
| 7 | 37 |
| 8 | 45 |
| 9 | 55 |
| 10 | 139 |
| 11 | 205 |
| 12 | 264 |
| 13 | 445 |
| 14 | 975 |
| 15 | 1111 |
| 16 | 1298 |
| 17 | 1340 |
| 18 | 1835 |
| 19 | 2264 |
| 20 | 2317 |
| 21 | 2897 |
| 22 | 2955 |
| 23 | 3001 |
| 24 | 4134 |
| 25 | 6637 |
| 26 | 7063 |
| 27 | 20613 |
| 28 | 114795 |
| 29 | 147890 |
[1,2,3,5,7,12,37,45,55,139,205,264,445,975,1111, 1298,1340,1835,2264,2317,2897,2955,3001,4134,6637, 7063,20613,114795,147890] |