n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 5 |
3 | 14 |
4 | 43 |
5 | 143 |
6 | 507 |
7 | 1885 |
8 | 7247 |
9 | 28523 |
10 | 114190 |
11 | 463179 |
12 | 1898892 |
13 | 7855615 |
14 | 32754687 |
15 | 137520639 |
16 | 580920600 |
17 | 2467305352 |
18 | 10530055735 |
19 | 45135757683 |
20 | 194224957674 |
21 | 838729701308 |
22 | 3633559928326 |
23 | 15787558766909 |
24 | 68780335280091 |
25 | 300391273651651 |
26 | 1314927603572310 |
[1,2,5,14,43,143,507,1885,7247,28523,114190, 463179,1898892,7855615,32754687,137520639, 580920600,2467305352,10530055735,45135757683, 194224957674,838729701308,3633559928326, 15787558766909,68780335280091,300391273651651, 1314927603572310] |