n | a(n) |
---|---|
1 | 8 |
2 | 280 |
3 | 2138 |
4 | 13968 |
5 | 85844 |
6 | 502276 |
7 | 2848436 |
8 | 15817652 |
9 | 86332266 |
10 | 465260812 |
11 | 2481799950 |
12 | 13127073212 |
13 | 68942510184 |
14 | 359901720360 |
15 | 1869047959784 |
16 | 9662464139924 |
17 | 49753587454582 |
18 | 255286283139832 |
19 | 1305758265647346 |
[8,280,2138,13968,85844,502276,2848436,15817652, 86332266,465260812,2481799950,13127073212, 68942510184,359901720360,1869047959784, 9662464139924,49753587454582,255286283139832, 1305758265647346] |