Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 0 |
2 | 2 |
3 | 6 |
4 | 28 |
5 | 148 |
6 | 1144 |
7 | 13128 |
8 | 250240 |
9 | 8295664 |
10 | 494367376 |
11 | 53628829952 |
12 | 10655018252544 |
13 | 3893626388008448 |
14 | 2627758027841688960 |
15 | 3289042848785452985600 |
16 | 7666804477507744021487616 |
17 | 33416397343695235205887366144 |
18 | 273365202164844511328577434284160 |
[0,2,6,28,148,1144,13128,250240,8295664,494367376, 53628829952,10655018252544,3893626388008448, 2627758027841688960,3289042848785452985600, 7666804477507744021487616, 33416397343695235205887366144, 273365202164844511328577434284160] |