Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | -3 |
2 | 0 |
3 | 9 |
4 | 45 |
5 | 252 |
6 | 1935 |
7 | 19989 |
8 | 260190 |
9 | 4063887 |
10 | 73823445 |
11 | 1527002694 |
12 | 35408499885 |
13 | 909389617497 |
14 | 25618701424680 |
15 | 785355764569749 |
16 | 26024092206299505 |
17 | 926859918577582332 |
18 | 35306305954587340515 |
19 | 1432301360556686816529 |
20 | 61649353087003554947550 |
[1,-3,0,9,45,252,1935,19989,260190,4063887, 73823445,1527002694,35408499885,909389617497, 25618701424680,785355764569749,26024092206299505, 926859918577582332,35306305954587340515, 1432301360556686816529,61649353087003554947550] |