n | a(n) |
---|---|
0 | 1 |
1 | 6 |
2 | 48 |
3 | 414 |
4 | 3876 |
5 | 38946 |
6 | 416808 |
7 | 4722774 |
8 | 56379756 |
9 | 706236426 |
10 | 9250945008 |
11 | 126342991614 |
12 | 1794459834036 |
13 | 26445918969906 |
14 | 403610795535288 |
15 | 6367606516836774 |
16 | 103683034842399996 |
17 | 1739933892930544986 |
18 | 30052751213767045248 |
19 | 533635421576480845134 |
20 | 9730601644306627161156 |
[1,6,48,414,3876,38946,416808,4722774,56379756, 706236426,9250945008,126342991614,1794459834036, 26445918969906,403610795535288,6367606516836774, 103683034842399996,1739933892930544986, 30052751213767045248,533635421576480845134, 9730601644306627161156] |