n | a(n) |
---|---|
1 | 0 |
2 | 8 |
3 | 671 |
4 | 15639 |
5 | 42159 |
6 | 981911 |
7 | 77624048 |
8 | 1807894920 |
9 | 4873553880 |
10 | 113507005568 |
11 | 8973184757831 |
12 | 208989037004319 |
13 | 563373081435879 |
14 | 13121182828725551 |
15 | 1037282211558181688 |
16 | 24158714697817430640 |
17 | 65124801462951244560 |
18 | 1516782492521509296728 |
[0,8,671,15639,42159,981911,77624048,1807894920, 4873553880,113507005568,8973184757831, 208989037004319,563373081435879,13121182828725551, 1037282211558181688,24158714697817430640, 65124801462951244560,1516782492521509296728] |