Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 16 |
3 | 61 |
4 | 232 |
5 | 880 |
6 | 3337 |
7 | 12652 |
8 | 47968 |
9 | 181861 |
10 | 689488 |
11 | 2614048 |
12 | 9910609 |
13 | 37573972 |
14 | 142453744 |
15 | 540083149 |
16 | 2047610680 |
17 | 7763081488 |
18 | 29432076505 |
19 | 111585473980 |
20 | 423052651456 |
21 | 1603914376309 |
22 | 6080901083296 |
23 | 23054446378816 |
[1,4,16,61,232,880,3337,12652,47968,181861,689488, 2614048,9910609,37573972,142453744,540083149, 2047610680,7763081488,29432076505,111585473980, 423052651456,1603914376309,6080901083296, 23054446378816] |