n | a(n) |
---|---|
1 | 1 |
2 | 4 |
3 | 80 |
4 | 616 |
5 | 6576 |
6 | 41088 |
7 | 1224720 |
8 | 4027392 |
9 | 82260072 |
10 | 4938271560 |
11 | 635485074048 |
12 | 41135376570624 |
13 | 12236327748685824 |
14 | 411522630337040436 |
15 | 65843620853926470080 |
16 | 6172839452588538935840 |
17 | 805372326785629836739584 |
18 | 40727551345036946357114880 |
[1,4,80,616,6576,41088,1224720,4027392,82260072, 4938271560,635485074048,41135376570624, 12236327748685824,411522630337040436, 65843620853926470080,6172839452588538935840, 805372326785629836739584, 40727551345036946357114880] |