Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 21 |
2 | 237 |
3 | 252 |
4 | 1372 |
5 | 5421 |
6 | 16195 |
7 | 53834 |
8 | 185090 |
9 | 619073 |
10 | 2213741 |
11 | 7903854 |
12 | 27396112 |
13 | 97000671 |
14 | 345456070 |
15 | 1212355115 |
16 | 4294891431 |
17 | 15302228975 |
18 | 54122847981 |
19 | 192114679415 |
20 | 684540291374 |
21 | 2430461260505 |
22 | 8640825474293 |
23 | 30793872853587 |
[21,237,252,1372,5421,16195,53834,185090,619073, 2213741,7903854,27396112,97000671,345456070, 1212355115,4294891431,15302228975,54122847981, 192114679415,684540291374,2430461260505, 8640825474293,30793872853587] |