Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 14 |
4 | 56 |
5 | 241 |
6 | 1080 |
7 | 4998 |
8 | 23704 |
9 | 114588 |
10 | 562552 |
11 | 2797138 |
12 | 14057140 |
13 | 71288385 |
14 | 364360204 |
15 | 1874960408 |
16 | 9706035408 |
17 | 50510552881 |
18 | 264096980192 |
19 | 1386676113360 |
20 | 7308650513232 |
21 | 38654087828310 |
22 | 205076534841112 |
23 | 1091144400876394 |
24 | 5820924498941668 |
[1,1,4,14,56,241,1080,4998,23704,114588,562552, 2797138,14057140,71288385,364360204,1874960408, 9706035408,50510552881,264096980192,1386676113360, 7308650513232,38654087828310,205076534841112, 1091144400876394,5820924498941668] |