Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | -1 |
2 | 2 |
3 | -2 |
4 | 2 |
5 | -1 |
6 | 2 |
7 | 2 |
8 | 8 |
9 | 22 |
10 | 68 |
11 | 212 |
12 | 678 |
13 | 2207 |
14 | 7298 |
15 | 24458 |
16 | 82928 |
17 | 284066 |
18 | 981884 |
19 | 3421316 |
20 | 12007556 |
21 | 42416486 |
22 | 150718772 |
23 | 538421588 |
24 | 1932856592 |
25 | 6969847484 |
26 | 25237057112 |
27 | 91729488352 |
28 | 334589415278 |
29 | 1224445617887 |
30 | 4494622119426 |
31 | 16545704494682 |
32 | 61071167108960 |
33 | 225982053183050 |
[-1,2,-2,2,-1,2,2,8,22,68,212,678,2207,7298,24458, 82928,284066,981884,3421316,12007556,42416486, 150718772,538421588,1932856592,6969847484, 25237057112,91729488352,334589415278, 1224445617887,4494622119426,16545704494682, 61071167108960,225982053183050] |