Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 40 |
4 | 472 |
5 | 8656 |
6 | 170944 |
7 | 4546240 |
8 | 126145792 |
9 | 4391814016 |
10 | 157103133184 |
11 | 6757912560640 |
12 | 296079903219712 |
13 | 15160207270014976 |
14 | 786265905880858624 |
15 | 46689395543841955840 |
16 | 2797780732283446853632 |
17 | 188996669833290940481536 |
18 | 12849664459334761078718464 |
[1,1,4,40,472,8656,170944,4546240,126145792, 4391814016,157103133184,6757912560640, 296079903219712,15160207270014976, 786265905880858624,46689395543841955840, 2797780732283446853632,188996669833290940481536, 12849664459334761078718464] |