n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 10 |
3 | 66 |
4 | 920 |
5 | 16210 |
6 | 429672 |
7 | 13872026 |
8 | 567140800 |
9 | 27659216034 |
10 | 1597736349560 |
11 | 107173173825322 |
12 | 8248047045580608 |
13 | 720418094750908658 |
14 | 70754645379708307864 |
15 | 7752521231225769465210 |
16 | 941123321624950265044352 |
17 | 125814927060189222097127746 |
18 | 18423275946242027309159243256 |
19 | 2940809638786511819597887208906 |
20 | 509519998644880962798618701505280 |
21 | 95446391880475967165359534058573202 |
[1,2,10,66,920,16210,429672,13872026,567140800, 27659216034,1597736349560,107173173825322, 8248047045580608,720418094750908658, 70754645379708307864,7752521231225769465210, 941123321624950265044352, 125814927060189222097127746, 18423275946242027309159243256, 2940809638786511819597887208906, 509519998644880962798618701505280, 95446391880475967165359534058573202] |