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| n | a(n) |
|---|---|
| -4 | 1 |
| -3 | 0 |
| -2 | 0 |
| -1 | 0 |
| 0 | 6 |
| 1 | 504 |
| 2 | 0 |
| 3 | 0 |
| 4 | 143388 |
| 5 | 565760 |
| 6 | 0 |
| 7 | 0 |
| 8 | 18473000 |
| 9 | 51180024 |
| 10 | 0 |
| 11 | 0 |
| 12 | 818626500 |
| 13 | 1912896000 |
| 14 | 0 |
| 15 | 0 |
| 16 | 20556578700 |
| 17 | 43222528000 |
| 18 | 0 |
| 19 | 0 |
| 20 | 357139677440 |
| 21 | 697599931392 |
| 22 | 0 |
| 23 | 0 |
| 24 | 4764286992816 |
| 25 | 8806299845112 |
| 26 | 0 |
| 27 | 0 |
| 28 | 51954490735875 |
| 29 | 91956846489088 |
| 30 | 0 |
| 31 | 0 |
[1,0,0,0,6,504,0,0,143388,565760,0,0,18473000, 51180024,0,0,818626500,1912896000,0,0,20556578700, 43222528000,0,0,357139677440,697599931392,0,0, 4764286992816,8806299845112,0,0,51954490735875, 91956846489088,0,0] |