n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 10 |
3 | 20 |
4 | 36 |
5 | 62 |
6 | 106 |
7 | 184 |
8 | 328 |
9 | 602 |
10 | 1134 |
11 | 2180 |
12 | 4252 |
13 | 8374 |
14 | 16594 |
15 | 33008 |
16 | 65808 |
17 | 131378 |
18 | 262486 |
19 | 524668 |
20 | 1048996 |
21 | 2097614 |
22 | 4194810 |
23 | 8389160 |
24 | 16777816 |
25 | 33555082 |
26 | 67109566 |
27 | 134218484 |
28 | 268436268 |
29 | 536871782 |
30 | 1073742754 |
31 | 2147484640 |
[1,4,10,20,36,62,106,184,328,602,1134,2180,4252, 8374,16594,33008,65808,131378,262486,524668, 1048996,2097614,4194810,8389160,16777816,33555082, 67109566,134218484,268436268,536871782,1073742754, 2147484640] |