n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 6 |
3 | 13 |
4 | 114 |
5 | 290 |
6 | 2892 |
7 | 7901 |
8 | 84090 |
9 | 239222 |
10 | 2648244 |
11 | 7732914 |
12 | 87894324 |
13 | 261371940 |
14 | 3027588120 |
15 | 9125058525 |
16 | 107215635402 |
17 | 326501869166 |
18 | 3879094785060 |
19 | 11910103389734 |
20 | 142766337272988 |
21 | 441265565242268 |
22 | 5328172865489448 |
23 | 16559430499708018 |
24 | 201171901999797924 |
[1,1,6,13,114,290,2892,7901,84090,239222,2648244, 7732914,87894324,261371940,3027588120,9125058525, 107215635402,326501869166,3879094785060, 11910103389734,142766337272988,441265565242268, 5328172865489448,16559430499708018, 201171901999797924] |