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 | 1 |
4 | 3 |
5 | 6 |
6 | 17 |
7 | 41 |
8 | 116 |
9 | 313 |
10 | 895 |
11 | 2550 |
12 | 7450 |
13 | 21881 |
14 | 65168 |
15 | 195370 |
16 | 591007 |
17 | 1798718 |
18 | 5510023 |
19 | 16966529 |
20 | 52506837 |
21 | 163200904 |
22 | 509323732 |
23 | 1595311747 |
24 | 5013746254 |
25 | 15805787496 |
26 | 49969942138 |
27 | 158396065350 |
28 | 503317495573 |
29 | 1602973785463 |
30 | 5116010587910 |
31 | 16360492172347 |
[0,0,1,1,3,6,17,41,116,313,895,2550,7450,21881, 65168,195370,591007,1798718,5510023,16966529, 52506837,163200904,509323732,1595311747, 5013746254,15805787496,49969942138,158396065350, 503317495573,1602973785463,5116010587910, 16360492172347] |