n | a(n) |
---|---|
0 | 2 |
1 | 2 |
2 | 10 |
3 | 18 |
4 | 58 |
5 | 130 |
6 | 362 |
7 | 882 |
8 | 2330 |
9 | 5858 |
10 | 15178 |
11 | 38610 |
12 | 99322 |
13 | 253762 |
14 | 651050 |
15 | 1666098 |
16 | 4270298 |
17 | 10934690 |
18 | 28015882 |
19 | 71754642 |
20 | 183818170 |
21 | 470836738 |
22 | 1206109418 |
23 | 3089456370 |
24 | 7913894042 |
25 | 20271719522 |
26 | 51927295690 |
27 | 133014173778 |
28 | 340723356538 |
29 | 872780051650 |
[2,2,10,18,58,130,362,882,2330,5858,15178,38610, 99322,253762,651050,1666098,4270298,10934690, 28015882,71754642,183818170,470836738,1206109418, 3089456370,7913894042,20271719522,51927295690, 133014173778,340723356538,872780051650] |