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 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 0 |
| 9 | 0 |
| 10 | 0 |
| 11 | 0 |
| 12 | 1 |
| 13 | 0 |
| 14 | 1 |
| 15 | 1 |
| 16 | 9 |
| 17 | 6 |
| 18 | 267 |
| 19 | 3727 |
| 20 | 483012 |
| 21 | 69823723 |
| 22 | 14836130862 |
[1,0,0,0,0,0,0,0,0,0,0,0,1,0,1,1,9,6,267,3727, 483012,69823723,14836130862] |