n | a(n) |
---|---|
0 | 1 |
1 | 6 |
2 | 30 |
3 | 144 |
4 | 690 |
5 | 3336 |
6 | 16290 |
7 | 80184 |
8 | 396930 |
9 | 1972296 |
10 | 9823650 |
11 | 49003224 |
12 | 244667970 |
13 | 1222289256 |
14 | 6108282210 |
15 | 30531894264 |
16 | 152630871810 |
17 | 763068462216 |
18 | 3815084423970 |
19 | 19074648065304 |
20 | 95370917376450 |
21 | 476847616459176 |
22 | 2384217167880930 |
23 | 11921023089868344 |
24 | 59604927188149890 |
25 | 298024071132008136 |
[1,6,30,144,690,3336,16290,80184,396930,1972296, 9823650,49003224,244667970,1222289256,6108282210, 30531894264,152630871810,763068462216, 3815084423970,19074648065304,95370917376450, 476847616459176,2384217167880930, 11921023089868344,59604927188149890, 298024071132008136] |