Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | -1 |
3 | 3 |
4 | -4 |
5 | 25 |
6 | -61 |
7 | 427 |
8 | -1184 |
9 | 12465 |
10 | -49201 |
11 | 555731 |
12 | -2361844 |
13 | 35135945 |
14 | -191422141 |
15 | 2990414715 |
16 | -17147588384 |
17 | 329655706465 |
18 | -2289437638081 |
19 | 45692713833379 |
20 | -329955144475204 |
21 | 7777794952988025 |
22 | -65643617893832221 |
[0,1,-1,3,-4,25,-61,427,-1184,12465,-49201,555731, -2361844,35135945,-191422141,2990414715, -17147588384,329655706465,-2289437638081, 45692713833379,-329955144475204,7777794952988025, -65643617893832221] |