The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 1 |
| 3 | 10 |
| 4 | 8 |
| 5 | 35 |
| 6 | 42 |
| 7 | 130 |
| 8 | 194 |
| 9 | 501 |
| 10 | 849 |
| 11 | 1979 |
| 12 | 3613 |
| 13 | 7942 |
| 14 | 15145 |
| 15 | 32182 |
| 16 | 62953 |
| 17 | 131165 |
| 18 | 260426 |
| 19 | 536438 |
| 20 | 1074379 |
| 21 | 2198378 |
| 22 | 4425274 |
| 23 | 9019904 |
| 24 | 18210519 |
| 25 | 37034259 |
| 26 | 74898261 |
| 27 | 152118445 |
| 28 | 307953916 |
| 29 | 624975597 |
| 30 | 1265962640 |
| 31 | 2568054807 |
| 32 | 5203674585 |
[3,1,10,8,35,42,130,194,501,849,1979,3613,7942, 15145,32182,62953,131165,260426,536438,1074379, 2198378,4425274,9019904,18210519,37034259, 74898261,152118445,307953916,624975597,1265962640, 2568054807,5203674585] |