n | a(n) |
---|---|
0 | 2 |
1 | 4 |
2 | 8 |
3 | 20 |
4 | 44 |
5 | 108 |
6 | 244 |
7 | 588 |
8 | 1348 |
9 | 3212 |
10 | 7428 |
11 | 17580 |
12 | 40868 |
13 | 96332 |
14 | 224644 |
15 | 528236 |
16 | 1234148 |
17 | 2897804 |
18 | 6777924 |
19 | 15900844 |
20 | 37216932 |
21 | 87264460 |
22 | 204330500 |
23 | 478954476 |
24 | 1121747556 |
25 | 2628904460 |
26 | 6157985732 |
27 | 14430108460 |
28 | 33804242468 |
29 | 79208704844 |
30 | 185565457796 |
[2,4,8,20,44,108,244,588,1348,3212,7428,17580, 40868,96332,224644,528236,1234148,2897804,6777924, 15900844,37216932,87264460,204330500,478954476, 1121747556,2628904460,6157985732,14430108460, 33804242468,79208704844,185565457796] |