Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 3 |
6 | 9 |
7 | 20 |
8 | 59 |
9 | 238 |
10 | 1339 |
11 | 8950 |
12 | 63227 |
13 | 541368 |
14 | 5931901 |
15 | 82015459 |
16 | 1400527040 |
17 | 28248253548 |
18 | 677346206953 |
19 | 19987158806408 |
20 | 732068950428064 |
21 | 33003291678037712 |
22 | 1801673455589720405 |
23 | 118568477345258796542 |
[1,1,1,1,3,9,20,59,238,1339,8950,63227,541368, 5931901,82015459,1400527040,28248253548, 677346206953,19987158806408,732068950428064, 33003291678037712,1801673455589720405, 118568477345258796542] |