n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 5 |
3 | 14 |
4 | 43 |
5 | 143 |
6 | 510 |
7 | 1936 |
8 | 7775 |
9 | 32869 |
10 | 145665 |
11 | 674338 |
12 | 3251208 |
13 | 16282580 |
14 | 84512702 |
15 | 453697993 |
16 | 2514668492 |
17 | 14367066833 |
18 | 84489482201 |
19 | 510760424832 |
20 | 3170267071640 |
21 | 20182121448815 |
22 | 131642848217536 |
23 | 878999194493046 |
24 | 6003048930287115 |
25 | 41899203336942661 |
[1,2,5,14,43,143,510,1936,7775,32869,145665, 674338,3251208,16282580,84512702,453697993, 2514668492,14367066833,84489482201,510760424832, 3170267071640,20182121448815,131642848217536, 878999194493046,6003048930287115, 41899203336942661] |