n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 7 |
3 | 28 |
4 | 117 |
5 | 511 |
6 | 2289 |
7 | 10454 |
8 | 48363 |
9 | 226027 |
10 | 1065173 |
11 | 5050638 |
12 | 24077657 |
13 | 115270660 |
14 | 553893214 |
15 | 2669689176 |
16 | 12901958990 |
17 | 62495145519 |
18 | 303328095502 |
19 | 1474852451252 |
20 | 7182372975331 |
21 | 35026543641620 |
22 | 171030731439493 |
23 | 836074943581080 |
24 | 4091327646947020 |
25 | 20039706540762862 |
26 | 98240716119212982 |
[1,2,7,28,117,511,2289,10454,48363,226027,1065173, 5050638,24077657,115270660,553893214,2669689176, 12901958990,62495145519,303328095502, 1474852451252,7182372975331,35026543641620, 171030731439493,836074943581080,4091327646947020, 20039706540762862,98240716119212982] |