Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 2 |
3 | 6 |
4 | 15 |
5 | 42 |
6 | 77 |
7 | 180 |
8 | 345 |
9 | 806 |
10 | 1457 |
11 | 3276 |
12 | 5985 |
13 | 13462 |
14 | 24257 |
15 | 54060 |
16 | 97665 |
17 | 217686 |
18 | 391937 |
19 | 871596 |
20 | 1570305 |
21 | 3492182 |
22 | 6286337 |
23 | 13972140 |
24 | 25155585 |
25 | 55911766 |
26 | 100642817 |
27 | 223660716 |
28 | 402612225 |
29 | 894735702 |
30 | 1610530817 |
31 | 3578997420 |
32 | 6442287105 |
33 | 14316361046 |
[0,1,2,6,15,42,77,180,345,806,1457,3276,5985, 13462,24257,54060,97665,217686,391937,871596, 1570305,3492182,6286337,13972140,25155585, 55911766,100642817,223660716,402612225,894735702, 1610530817,3578997420,6442287105,14316361046] |