n | a(n) |
---|---|
1 | 4 |
2 | 10 |
3 | 38 |
4 | 108 |
5 | 358 |
6 | 1132 |
7 | 3580 |
8 | 11382 |
9 | 36270 |
10 | 114992 |
11 | 365628 |
12 | 1162290 |
13 | 3692624 |
14 | 11733828 |
15 | 37293892 |
16 | 118504546 |
17 | 376583590 |
18 | 1196750110 |
19 | 3803034578 |
20 | 12085297922 |
21 | 38405269512 |
22 | 122045123484 |
23 | 387837623386 |
24 | 1232482503260 |
25 | 3916616317912 |
[4,10,38,108,358,1132,3580,11382,36270,114992, 365628,1162290,3692624,11733828,37293892, 118504546,376583590,1196750110,3803034578, 12085297922,38405269512,122045123484,387837623386, 1232482503260,3916616317912] |