n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 6 |
3 | 33 |
4 | 196 |
5 | 1305 |
6 | 9786 |
7 | 82201 |
8 | 767208 |
9 | 7891281 |
10 | 88776910 |
11 | 1085051121 |
12 | 14322674796 |
13 | 203121569833 |
14 | 3080677142466 |
15 | 49764784609065 |
16 | 853110593298256 |
17 | 15469738758475041 |
18 | 295858753755835158 |
19 | 5951981987323272001 |
20 | 125652953065713520020 |
21 | 2777591594084193600441 |
[0,1,6,33,196,1305,9786,82201,767208,7891281, 88776910,1085051121,14322674796,203121569833, 3080677142466,49764784609065,853110593298256, 15469738758475041,295858753755835158, 5951981987323272001,125652953065713520020, 2777591594084193600441] |