Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 5 |
2 | 13 |
3 | 55 |
4 | 245 |
5 | 1215 |
6 | 6317 |
7 | 34187 |
8 | 190093 |
9 | 1079983 |
10 | 6239989 |
11 | 36554363 |
12 | 216600357 |
13 | 1295906671 |
14 | 7817665373 |
15 | 47499325915 |
16 | 290411653437 |
17 | 1785401003887 |
18 | 11030252590149 |
19 | 68444469966843 |
20 | 426386709191893 |
21 | 2665740642304879 |
[1,5,13,55,245,1215,6317,34187,190093,1079983, 6239989,36554363,216600357,1295906671,7817665373, 47499325915,290411653437,1785401003887, 11030252590149,68444469966843,426386709191893, 2665740642304879] |