n | a(n) |
---|---|
0 | 4 |
1 | 32 |
2 | 284 |
3 | 2552 |
4 | 22964 |
5 | 206672 |
6 | 1860044 |
7 | 16740392 |
8 | 150663524 |
9 | 1355971712 |
10 | 12203745404 |
11 | 109833708632 |
12 | 988503377684 |
13 | 8896530399152 |
14 | 80068773592364 |
15 | 720618962331272 |
16 | 6485570660981444 |
17 | 58370135948832992 |
18 | 525331223539496924 |
19 | 4727981011855472312 |
20 | 42551829106699250804 |
[4,32,284,2552,22964,206672,1860044,16740392, 150663524,1355971712,12203745404,109833708632, 988503377684,8896530399152,80068773592364, 720618962331272,6485570660981444, 58370135948832992,525331223539496924, 4727981011855472312,42551829106699250804] |