n | a(n) |
---|---|
1 | 4 |
2 | 32 |
3 | 292 |
4 | 2672 |
5 | 24780 |
6 | 232512 |
7 | 2201948 |
8 | 20997008 |
9 | 201314448 |
10 | 1938659936 |
11 | 18737136032 |
12 | 181646110192 |
13 | 1765522809468 |
14 | 17198432462368 |
15 | 167859941774728 |
[4,32,292,2672,24780,232512,2201948,20997008, 201314448,1938659936,18737136032,181646110192, 1765522809468,17198432462368,167859941774728] |