n | a(n) |
---|---|
1 | 0 |
2 | 4 |
3 | 6 |
4 | 14 |
5 | 26 |
6 | 54 |
7 | 104 |
8 | 210 |
9 | 412 |
10 | 832 |
11 | 1654 |
12 | 3330 |
13 | 6670 |
14 | 13452 |
15 | 27004 |
16 | 54414 |
17 | 109400 |
18 | 220264 |
19 | 442938 |
20 | 891256 |
21 | 1791894 |
22 | 3603128 |
23 | 7241452 |
24 | 14552628 |
25 | 29234478 |
26 | 58720290 |
27 | 117911510 |
28 | 236729446 |
29 | 475169660 |
30 | 953616548 |
31 | 1913446072 |
32 | 3838773120 |
33 | 7700145556 |
34 | 15443494464 |
35 | 30969376788 |
36 | 62096345834 |
37 | 124493833506 |
[0,4,6,14,26,54,104,210,412,832,1654,3330,6670, 13452,27004,54414,109400,220264,442938,891256, 1791894,3603128,7241452,14552628,29234478, 58720290,117911510,236729446,475169660,953616548, 1913446072,3838773120,7700145556,15443494464, 30969376788,62096345834,124493833506] |