n | a(n) |
---|---|
1 | 3 |
2 | 8 |
3 | 34 |
4 | 144 |
5 | 612 |
6 | 2613 |
7 | 11159 |
8 | 47675 |
9 | 203696 |
10 | 870316 |
11 | 3718550 |
12 | 15888022 |
13 | 67883780 |
14 | 290042861 |
15 | 1239248291 |
16 | 5294859950 |
17 | 22623022401 |
18 | 96659996189 |
19 | 412993219856 |
20 | 1764570725956 |
21 | 7539372796546 |
22 | 32213014377497 |
23 | 137634565007885 |
[3,8,34,144,612,2613,11159,47675,203696,870316, 3718550,15888022,67883780,290042861,1239248291, 5294859950,22623022401,96659996189,412993219856, 1764570725956,7539372796546,32213014377497, 137634565007885] |