The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 2 |
| 5 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 13 |
| 9 | 0 |
| 10 | 0 |
| 11 | 0 |
| 12 | 304 |
| 13 | 0 |
| 14 | 0 |
| 15 | 0 |
| 16 | 11395 |
| 17 | 0 |
| 18 | 0 |
| 19 | 0 |
| 20 | 478444 |
| 21 | 0 |
| 22 | 0 |
| 23 | 0 |
[1,0,0,0,2,0,0,0,13,0,0,0,304,0,0,0,11395,0,0,0, 478444,0,0,0] |