n | a(n) |
---|---|
1 | 4 |
2 | 16 |
3 | 58 |
4 | 208 |
5 | 748 |
6 | 2692 |
7 | 9688 |
8 | 34864 |
9 | 125464 |
10 | 451504 |
11 | 1624816 |
12 | 5847184 |
13 | 21042112 |
14 | 75723712 |
15 | 272504992 |
16 | 980656768 |
17 | 3529064512 |
18 | 12699954496 |
19 | 45703002496 |
20 | 164470230016 |
21 | 591874824064 |
22 | 2129964841216 |
23 | 7665050176768 |
24 | 27584020672768 |
[4,16,58,208,748,2692,9688,34864,125464,451504, 1624816,5847184,21042112,75723712,272504992, 980656768,3529064512,12699954496,45703002496, 164470230016,591874824064,2129964841216, 7665050176768,27584020672768] |