n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 8 |
4 | 57 |
5 | 608 |
6 | 8524 |
7 | 145800 |
8 | 2918123 |
9 | 66617234 |
10 | 1704913434 |
11 | 48300128696 |
12 | 1499864341015 |
13 | 50648006463048 |
14 | 1847622972848648 |
15 | 72406232075624192 |
16 | 3033607843748296089 |
17 | 135313823447621913500 |
18 | 6402077421524339766058 |
19 | 320237988317922139148736 |
[1,1,2,8,57,608,8524,145800,2918123,66617234, 1704913434,48300128696,1499864341015, 50648006463048,1847622972848648,72406232075624192, 3033607843748296089,135313823447621913500, 6402077421524339766058,320237988317922139148736] |