n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 10 |
4 | 74 |
5 | 730 |
6 | 9002 |
7 | 133210 |
8 | 2299754 |
9 | 45375130 |
10 | 1007179562 |
11 | 24840104410 |
12 | 673895590634 |
13 | 19944372341530 |
14 | 639455369290922 |
15 | 22079273878443610 |
16 | 816812844197444714 |
17 | 32232133532123179930 |
18 | 1351401783010933015082 |
[1,2,10,74,730,9002,133210,2299754,45375130, 1007179562,24840104410,673895590634, 19944372341530,639455369290922,22079273878443610, 816812844197444714,32232133532123179930, 1351401783010933015082] |