n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 12 |
3 | 28 |
4 | 68 |
5 | 164 |
6 | 396 |
7 | 940 |
8 | 2244 |
9 | 5324 |
10 | 12668 |
11 | 29940 |
12 | 71012 |
13 | 167468 |
14 | 396172 |
15 | 932628 |
16 | 2201636 |
17 | 5175268 |
18 | 12195660 |
19 | 28632804 |
20 | 67374292 |
21 | 158017740 |
22 | 371354012 |
23 | 870197548 |
24 | 2042809996 |
25 | 4783292988 |
26 | 11218303476 |
27 | 26250429540 |
28 | 61514573604 |
29 | 143857013260 |
30 | 336865512780 |
31 | 787374453524 |
32 | 1842579846180 |
[1,4,12,28,68,164,396,940,2244,5324,12668,29940, 71012,167468,396172,932628,2201636,5175268, 12195660,28632804,67374292,158017740,371354012, 870197548,2042809996,4783292988,11218303476, 26250429540,61514573604,143857013260,336865512780, 787374453524,1842579846180] |