Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 2 |
3 | 10 |
4 | 46 |
5 | 192 |
6 | 780 |
7 | 3090 |
8 | 12136 |
9 | 47100 |
10 | 181820 |
11 | 697856 |
12 | 2667642 |
13 | 10157814 |
14 | 38563342 |
15 | 146002012 |
16 | 551483230 |
17 | 2078722874 |
18 | 7821121318 |
19 | 29378487188 |
[0,0,2,10,46,192,780,3090,12136,47100,181820, 697856,2667642,10157814,38563342,146002012, 551483230,2078722874,7821121318,29378487188] |