Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 13 |
4 | 61 |
5 | 321 |
6 | 1951 |
7 | 13693 |
8 | 109593 |
9 | 986401 |
10 | 9864091 |
11 | 108505101 |
12 | 1302061333 |
13 | 16926797473 |
14 | 236975164791 |
15 | 3554627472061 |
16 | 56874039553201 |
17 | 966858672404673 |
18 | 17403456103284403 |
19 | 330665665962403981 |
20 | 6613313319248079981 |
21 | 138879579704209680001 |
[1,1,3,13,61,321,1951,13693,109593,986401,9864091, 108505101,1302061333,16926797473,236975164791, 3554627472061,56874039553201,966858672404673, 17403456103284403,330665665962403981, 6613313319248079981,138879579704209680001] |