Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 0 |
3 | -2 |
4 | 0 |
5 | -8 |
6 | 40 |
7 | -226 |
8 | 896 |
9 | -13264 |
10 | 62304 |
11 | -1040866 |
12 | 6528896 |
13 | -128181272 |
14 | 950205568 |
15 | -21880956098 |
16 | 189104984064 |
17 | -4957876255136 |
18 | 48968006626816 |
19 | -1441276692392770 |
20 | 16013733248841728 |
21 | -522786344819213608 |
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