n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 4 |
3 | 8 |
4 | 17 |
5 | 38 |
6 | 89 |
7 | 216 |
8 | 539 |
9 | 1374 |
10 | 3562 |
11 | 9360 |
12 | 24871 |
13 | 66706 |
14 | 180340 |
15 | 490912 |
16 | 1344379 |
17 | 3701158 |
18 | 10237540 |
19 | 28436824 |
20 | 79288843 |
21 | 221836402 |
22 | 622599625 |
23 | 1752360040 |
24 | 4945087837 |
25 | 13988490338 |
26 | 39658308814 |
27 | 112666081616 |
[1,2,4,8,17,38,89,216,539,1374,3562,9360,24871, 66706,180340,490912,1344379,3701158,10237540, 28436824,79288843,221836402,622599625,1752360040, 4945087837,13988490338,39658308814,112666081616] |