n | a(n) |
---|---|
0 | 2 |
1 | 4 |
2 | 8 |
3 | 24 |
4 | 60 |
5 | 152 |
6 | 400 |
7 | 1032 |
8 | 2656 |
9 | 6876 |
10 | 17776 |
11 | 45912 |
12 | 118664 |
13 | 306680 |
14 | 792480 |
15 | 2047984 |
16 | 5292564 |
17 | 13677160 |
18 | 35345112 |
19 | 91340568 |
20 | 236046088 |
21 | 610000528 |
22 | 1576390448 |
23 | 4073776744 |
24 | 10527631456 |
25 | 27205966108 |
26 | 70306845872 |
27 | 181690021616 |
28 | 469531293752 |
29 | 1213383282936 |
[2,4,8,24,60,152,400,1032,2656,6876,17776,45912, 118664,306680,792480,2047984,5292564,13677160, 35345112,91340568,236046088,610000528,1576390448, 4073776744,10527631456,27205966108,70306845872, 181690021616,469531293752,1213383282936] |