n | a(n) |
---|---|
1 | 3 |
2 | 166 |
3 | 424 |
4 | 1446 |
5 | 5100 |
6 | 18189 |
7 | 62390 |
8 | 213997 |
9 | 735000 |
10 | 2520806 |
11 | 8673171 |
12 | 29895212 |
13 | 103062319 |
14 | 355448168 |
15 | 1226378689 |
16 | 4232831248 |
17 | 14614818621 |
18 | 50474934066 |
19 | 174362780682 |
20 | 602441004444 |
21 | 2081828199132 |
22 | 7195055390173 |
23 | 24869853343749 |
[3,166,424,1446,5100,18189,62390,213997,735000, 2520806,8673171,29895212,103062319,355448168, 1226378689,4232831248,14614818621,50474934066, 174362780682,602441004444,2081828199132, 7195055390173,24869853343749] |