Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 26 |
4 | 156 |
5 | 1242 |
6 | 12616 |
7 | 158034 |
8 | 2372880 |
9 | 41725106 |
10 | 843126624 |
11 | 19277549898 |
12 | 492447987136 |
13 | 13907344659210 |
14 | 430397513894016 |
15 | 14487404695687298 |
16 | 527023721684738304 |
17 | 20605894357093102434 |
18 | 861761850029367846400 |
19 | 38387125875316048363386 |
20 | 1814541564588778500135936 |
[1,2,6,26,156,1242,12616,158034,2372880,41725106, 843126624,19277549898,492447987136,13907344659210, 430397513894016,14487404695687298, 527023721684738304,20605894357093102434, 861761850029367846400,38387125875316048363386, 1814541564588778500135936] |