Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 13 |
4 | 46 |
5 | 160 |
6 | 590 |
7 | 2165 |
8 | 8150 |
9 | 30606 |
10 | 116538 |
11 | 443508 |
12 | 1702458 |
13 | 6538806 |
14 | 25255218 |
15 | 97606497 |
16 | 378655122 |
17 | 1470166114 |
18 | 5723589574 |
19 | 22300607746 |
20 | 87061280866 |
21 | 340147775826 |
22 | 1330975341918 |
23 | 5211699279580 |
24 | 20431613875778 |
25 | 80150459987066 |
26 | 314718467976066 |
27 | 1236491484795006 |
28 | 4861807577614986 |
[1,1,4,13,46,160,590,2165,8150,30606,116538, 443508,1702458,6538806,25255218,97606497, 378655122,1470166114,5723589574,22300607746, 87061280866,340147775826,1330975341918, 5211699279580,20431613875778,80150459987066, 314718467976066,1236491484795006,4861807577614986] |