The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 3 |
| 3 | 8 |
| 4 | 3 |
| 5 | 62 |
| 6 | 9 |
| 7 | 232 |
| 8 | 31 |
| 9 | 964 |
| 10 | 23 |
| 11 | 4092 |
| 12 | 83 |
| 13 | 16248 |
| 14 | 215 |
| 15 | 65212 |
| 16 | 467 |
| 17 | 261304 |
| 18 | 471 |
| 19 | 1048252 |
| 20 | 1491 |
| 21 | 4191800 |
| 22 | 2711 |
| 23 | 16772988 |
| 24 | 6803 |
| 25 | 67098392 |
| 26 | 15063 |
| 27 | 268408764 |
| 28 | 14931 |
| 29 | 1073731384 |
| 30 | 47255 |
| 31 | 4294890236 |
| 32 | 98163 |
| 33 | 17179711112 |
| 34 | 211375 |
| 35 | 68719137012 |
| 36 | 491279 |
[1,0,3,8,3,62,9,232,31,964,23,4092,83,16248,215, 65212,467,261304,471,1048252,1491,4191800,2711, 16772988,6803,67098392,15063,268408764,14931, 1073731384,47255,4294890236,98163,17179711112, 211375,68719137012,491279] |