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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | -4 |
| 3 | 0 |
| 4 | 16 |
| 5 | 10 |
| 6 | 12 |
| 7 | 182 |
| 8 | 1120 |
| 9 | 7452 |
| 10 | 58640 |
| 11 | 520784 |
| 12 | 5142144 |
| 13 | 55929640 |
| 14 | 664505744 |
| 15 | 8562670920 |
| 16 | 118939979008 |
| 17 | 1771631324848 |
| 18 | 28168269788160 |
| 19 | 476151820931168 |
| 20 | 8526830353553920 |
| 21 | 161255217263900256 |
[0,1,-4,0,16,10,12,182,1120,7452,58640,520784, 5142144,55929640,664505744,8562670920, 118939979008,1771631324848,28168269788160, 476151820931168,8526830353553920, 161255217263900256] |