n | a(n) |
---|---|
1 | 4 |
2 | 5 |
3 | 8 |
4 | 19 |
5 | 34 |
6 | 82 |
7 | 278 |
8 | 669 |
9 | 1969 |
10 | 3553 |
11 | 9374 |
12 | 26252 |
13 | 60465 |
14 | 172383 |
15 | 389427 |
16 | 951837 |
17 | 2531963 |
18 | 6160868 |
19 | 15935881 |
20 | 39165416 |
21 | 97133522 |
22 | 245493084 |
23 | 614301686 |
24 | 1554508080 |
25 | 3857975809 |
26 | 9676587733 |
27 | 24254427054 |
28 | 60670014406 |
29 | 152847249733 |
[4,5,8,19,34,82,278,669,1969,3553,9374,26252, 60465,172383,389427,951837,2531963,6160868, 15935881,39165416,97133522,245493084,614301686, 1554508080,3857975809,9676587733,24254427054, 60670014406,152847249733] |