The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 10 | 1 |
| 11 | 0 |
| 12 | 0 |
| 13 | 0 |
| 14 | 0 |
| 15 | 740 |
| 16 | 0 |
| 17 | 0 |
| 18 | 0 |
| 19 | 0 |
| 20 | 0 |
| 21 | 4655685 |
| 22 | 19546 |
| 23 | 0 |
| 24 | 0 |
| 25 | 1747955 |
| 26 | 0 |
| 27 | 20759960 |
| 28 | 167960 |
| 29 | 110 |
| 30 | 0 |
| 31 | 17405076899616 |
| 32 | 0 |
| 33 | 0 |
| 34 | 261107026 |
| 35 | 11058883809 |
| 36 | 17817753939932 |
| 37 | 2065690806135 |
| 38 | 180987639660985 |
| 39 | 533693067696 |
| 40 | 45880541850 |
| 41 | 2285677991937600 |
| 42 | 16275024211846481596 |
[1,0,0,0,0,740,0,0,0,0,0,4655685,19546,0,0, 1747955,0,20759960,167960,110,0,17405076899616,0, 0,261107026,11058883809,17817753939932, 2065690806135,180987639660985,533693067696, 45880541850,2285677991937600,16275024211846481596] |