n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 10 |
3 | 70 |
4 | 602 |
5 | 6078 |
6 | 70402 |
7 | 917830 |
8 | 13253002 |
9 | 209350350 |
10 | 3584098770 |
11 | 66012131222 |
12 | 1300004931162 |
13 | 27232369503902 |
14 | 604103160535330 |
15 | 14136908333006822 |
16 | 347827448896896554 |
17 | 8971450949011952494 |
[1,2,10,70,602,6078,70402,917830,13253002, 209350350,3584098770,66012131222,1300004931162, 27232369503902,604103160535330,14136908333006822, 347827448896896554,8971450949011952494] |