Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | -2 |
3 | 6 |
4 | -21 |
5 | 80 |
6 | -320 |
7 | 1326 |
8 | -5637 |
9 | 24434 |
10 | -107542 |
11 | 479196 |
12 | -2157045 |
13 | 9792702 |
14 | -44780606 |
15 | 206055346 |
16 | -953305632 |
17 | 4431463863 |
18 | -20686696920 |
19 | 96931500840 |
20 | -455722378776 |
21 | 2149086843549 |
22 | -10162544469252 |
23 | 48176923330632 |
24 | -228913129263389 |
25 | 1089973058779915 |
[1,1,-2,6,-21,80,-320,1326,-5637,24434,-107542, 479196,-2157045,9792702,-44780606,206055346, -953305632,4431463863,-20686696920,96931500840, -455722378776,2149086843549,-10162544469252, 48176923330632,-228913129263389,1089973058779915] |