The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 0 |
| 3 | 2 |
| 4 | 0 |
| 5 | 0 |
| 6 | 3 |
| 7 | 0 |
| 8 | 0 |
| 9 | 6 |
| 10 | 4 |
| 11 | 0 |
| 12 | 0 |
| 13 | 6 |
| 14 | 48 |
| 15 | 5 |
| 16 | 0 |
| 17 | 0 |
| 18 | 6 |
| 19 | 1056 |
| 20 | 180 |
| 21 | 6 |
| 22 | 0 |
| 23 | 0 |
| 24 | 6 |
| 25 | 45696 |
| 26 | 32940 |
| 27 | 480 |
| 28 | 7 |
| 29 | 0 |
| 30 | 0 |
| 31 | 6 |
| 32 | 4034304 |
| 33 | 30847500 |
| 34 | 393600 |
| 35 | 1050 |
| 36 | 8 |
| 37 | 0 |
| 38 | 0 |
| 39 | 6 |
| 40 | 739642368 |
| 41 | 148039757460 |
| 42 | 3312560640 |
| 43 | 2735250 |
| 44 | 2016 |
| 45 | 9 |
[1,0,2,0,0,3,0,0,6,4,0,0,6,48,5,0,0,6,1056,180,6, 0,0,6,45696,32940,480,7,0,0,6,4034304,30847500, 393600,1050,8,0,0,6,739642368,148039757460, 3312560640,2735250,2016,9] |