n | a(n) |
---|---|
0 | 3 |
1 | 28 |
2 | 186 |
3 | 3458 |
4 | 21966 |
5 | 375816 |
6 | 2911272 |
7 | 45470096 |
8 | 340452396 |
9 | 6278429920 |
10 | 39543942612 |
11 | 706019328000 |
12 | 4708961513592 |
13 | 82162955169792 |
14 | 599236951715280 |
15 | 11195197038864384 |
16 | 68925937595777100 |
17 | 1179397832668228992 |
18 | 9136813499663186064 |
19 | 144079834776308121600 |
[3,28,186,3458,21966,375816,2911272,45470096, 340452396,6278429920,39543942612,706019328000, 4708961513592,82162955169792,599236951715280, 11195197038864384,68925937595777100, 1179397832668228992,9136813499663186064, 144079834776308121600] |