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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -12 |
| 2 | 3024 |
| 3 | -4390848 |
| 4 | 21224560896 |
| 5 | -257991277243392 |
| 6 | 6628234834692624384 |
| 7 | -319729080846260095008768 |
| 8 | 26571747463798134334265819136 |
| 9 | -3564202847752289659513902717468672 |
| 10 | 733070216072136922924207670741034860544 |
| 11 | -221829664053602095461018886102097997267468288 |
[1,-12,3024,-4390848,21224560896,-257991277243392, 6628234834692624384,-319729080846260095008768, 26571747463798134334265819136, -3564202847752289659513902717468672, 733070216072136922924207670741034860544, -221829664053602095461018886102097997267468288] |