Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | -1 |
3 | 3 |
4 | -6 |
5 | 23 |
6 | -105 |
7 | 406 |
8 | -1260 |
9 | 1385 |
10 | 55755 |
11 | -1232594 |
12 | 20220354 |
13 | -312914383 |
14 | 4892322435 |
15 | -78950848976 |
16 | 1325556752520 |
17 | -23243942565943 |
18 | 426334224758967 |
19 | -8180116120702106 |
20 | 164087156833319710 |
21 | -3437833525919834035 |
22 | 75145008886144335831 |
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