Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 15 |
4 | 54 |
5 | 118 |
6 | 471 |
7 | 973 |
8 | 4128 |
9 | 8262 |
10 | 36481 |
11 | 71534 |
12 | 324876 |
13 | 627926 |
14 | 2911923 |
15 | 5568348 |
16 | 26241376 |
17 | 49767432 |
18 | 237550401 |
19 | 447567059 |
20 | 2158650078 |
21 | 4045351674 |
22 | 19679880649 |
23 | 36716551814 |
24 | 179920446576 |
25 | 334415846660 |
[1,2,6,15,54,118,471,973,4128,8262,36481,71534, 324876,627926,2911923,5568348,26241376,49767432, 237550401,447567059,2158650078,4045351674, 19679880649,36716551814,179920446576,334415846660] |