n | a(n) |
---|---|
0 | 1 |
1 | 6 |
2 | 69 |
3 | 915 |
4 | 12978 |
5 | 194688 |
6 | 3051617 |
7 | 49526487 |
8 | 826910754 |
9 | 14135805042 |
10 | 246508115583 |
11 | 4372617452085 |
12 | 78714369892152 |
13 | 1435357362134796 |
14 | 26472477913596486 |
15 | 493178852479545556 |
16 | 9270953614684288962 |
17 | 175695092091980786166 |
18 | 3354069936616380522256 |
[1,6,69,915,12978,194688,3051617,49526487, 826910754,14135805042,246508115583,4372617452085, 78714369892152,1435357362134796,26472477913596486, 493178852479545556,9270953614684288962, 175695092091980786166,3354069936616380522256] |