n | a(n) |
---|---|
0 | 1 |
1 | 7 |
2 | 56 |
3 | 441 |
4 | 3528 |
5 | 28126 |
6 | 225008 |
7 | 1798349 |
8 | 14386792 |
9 | 115060722 |
10 | 920485776 |
11 | 7363180314 |
12 | 58905442512 |
13 | 471228010428 |
14 | 3769824083424 |
15 | 30158239367445 |
16 | 241265914939560 |
17 | 1930119075851050 |
18 | 15440952606808400 |
19 | 123527424655229966 |
[1,7,56,441,3528,28126,225008,1798349,14386792, 115060722,920485776,7363180314,58905442512, 471228010428,3769824083424,30158239367445, 241265914939560,1930119075851050, 15440952606808400,123527424655229966] |