Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 0 |
2 | 4 |
3 | 4 |
4 | 28 |
5 | 97 |
6 | 333 |
7 | 1380 |
8 | 4497 |
9 | 16712 |
10 | 61820 |
11 | 220148 |
12 | 817438 |
13 | 2928108 |
14 | 10697750 |
15 | 38920136 |
16 | 141054653 |
17 | 514441936 |
18 | 1866146690 |
19 | 6788624488 |
20 | 24686203092 |
21 | 89672098757 |
22 | 326220334103 |
23 | 1185345202297 |
24 | 4309679482381 |
25 | 15667708119546 |
[0,4,4,28,97,333,1380,4497,16712,61820,220148, 817438,2928108,10697750,38920136,141054653, 514441936,1866146690,6788624488,24686203092, 89672098757,326220334103,1185345202297, 4309679482381,15667708119546] |