n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 8 |
4 | 43 |
5 | 252 |
6 | 1636 |
7 | 11322 |
8 | 81805 |
9 | 610358 |
10 | 4672836 |
11 | 36525052 |
12 | 290399543 |
13 | 2342043630 |
14 | 19118822650 |
15 | 157709971144 |
16 | 1312796873451 |
17 | 11015236989702 |
18 | 93078467831012 |
19 | 791462018168032 |
20 | 6767910089071288 |
21 | 58167781282121262 |
[1,2,8,43,252,1636,11322,81805,610358,4672836, 36525052,290399543,2342043630,19118822650, 157709971144,1312796873451,11015236989702, 93078467831012,791462018168032,6767910089071288, 58167781282121262] |