n | a(n) |
---|---|
1 | 4 |
2 | 16 |
3 | 160 |
4 | 3112 |
5 | 89488 |
6 | 3358600 |
7 | 154925968 |
8 | 8469271816 |
9 | 535078978000 |
10 | 38352590740744 |
11 | 3074533743260944 |
12 | 272548937753080072 |
13 | 26471366143068858448 |
14 | 2795374966070961592072 |
15 | 318874907420330435803024 |
[4,16,160,3112,89488,3358600,154925968,8469271816, 535078978000,38352590740744,3074533743260944, 272548937753080072,26471366143068858448, 2795374966070961592072,318874907420330435803024] |