n | a(n) |
---|---|
0 | 2 |
1 | 2 |
2 | 6 |
3 | 14 |
4 | 34 |
5 | 82 |
6 | 198 |
7 | 478 |
8 | 1154 |
9 | 2786 |
10 | 6726 |
11 | 16238 |
12 | 39202 |
13 | 94642 |
14 | 228486 |
15 | 551614 |
16 | 1331714 |
17 | 3215042 |
18 | 7761798 |
19 | 18738638 |
20 | 45239074 |
21 | 109216786 |
22 | 263672646 |
23 | 636562078 |
24 | 1536796802 |
25 | 3710155682 |
26 | 8957108166 |
27 | 21624372014 |
28 | 52205852194 |
29 | 126036076402 |
30 | 304278004998 |
[2,2,6,14,34,82,198,478,1154,2786,6726,16238, 39202,94642,228486,551614,1331714,3215042,7761798, 18738638,45239074,109216786,263672646,636562078, 1536796802,3710155682,8957108166,21624372014, 52205852194,126036076402,304278004998] |