The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 132 |
| 2 | 36 |
| 3 | 0 |
| 4 | 0 |
| 5 | 2052 |
| 6 | 1188 |
| 7 | 324 |
| 8 | 24 |
| 9 | 0 |
| 10 | 10440 |
| 11 | 7956 |
| 12 | 1728 |
| 13 | 300 |
| 14 | 0 |
| 15 | 0 |
| 16 | 33672 |
| 17 | 28812 |
| 18 | 9276 |
| 19 | 1836 |
| 20 | 228 |
| 21 | 24 |
| 22 | 12 |
| 23 | 83040 |
| 24 | 75276 |
| 25 | 24948 |
| 26 | 5436 |
| 27 | 708 |
| 28 | 60 |
| 29 | 0 |
| 30 | 0 |
| 31 | 172140 |
| 32 | 162060 |
| 33 | 54732 |
| 34 | 11280 |
| 35 | 1836 |
| 36 | 168 |
| 37 | 0 |
| 38 | 0 |
| 39 | 0 |
| 40 | 322284 |
| 41 | 315492 |
| 42 | 114624 |
| 43 | 25980 |
| 44 | 3948 |
| 45 | 456 |
| 46 | 24 |
| 47 | 0 |
| 48 | 0 |
| 49 | 0 |
[132,36,0,0,2052,1188,324,24,0,10440,7956,1728, 300,0,0,33672,28812,9276,1836,228,24,12,83040, 75276,24948,5436,708,60,0,0,172140,162060,54732, 11280,1836,168,0,0,0,322284,315492,114624,25980, 3948,456,24,0,0,0] |