Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 2 |
2 | 1 |
3 | 1 |
4 | 2 |
5 | 4 |
6 | 8 |
7 | 18 |
8 | 40 |
9 | 88 |
10 | 194 |
11 | 460 |
12 | 1080 |
13 | 2514 |
14 | 5840 |
15 | 14256 |
16 | 34450 |
17 | 82552 |
18 | 197696 |
19 | 489714 |
20 | 1204736 |
21 | 2945128 |
22 | 7188018 |
23 | 18002376 |
24 | 44805640 |
25 | 110894770 |
26 | 274209616 |
27 | 691588200 |
28 | 1736001314 |
29 | 4338383356 |
30 | 10827952192 |
31 | 27470096770 |
32 | 69388005832 |
[2,1,1,2,4,8,18,40,88,194,460,1080,2514,5840, 14256,34450,82552,197696,489714,1204736,2945128, 7188018,18002376,44805640,110894770,274209616, 691588200,1736001314,4338383356,10827952192, 27470096770,69388005832] |