n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 4 |
4 | 10 |
5 | 26 |
6 | 77 |
7 | 235 |
8 | 758 |
9 | 2504 |
10 | 8483 |
11 | 29203 |
12 | 102030 |
13 | 360442 |
14 | 1285926 |
15 | 4625102 |
16 | 16754302 |
17 | 61067430 |
18 | 223803775 |
19 | 824188993 |
20 | 3048383517 |
21 | 11318928477 |
22 | 42176798315 |
23 | 157664823501 |
24 | 591109863049 |
25 | 2222121888117 |
26 | 8374151243258 |
27 | 31630394287364 |
28 | 119725350703472 |
[1,1,2,4,10,26,77,235,758,2504,8483,29203,102030, 360442,1285926,4625102,16754302,61067430, 223803775,824188993,3048383517,11318928477, 42176798315,157664823501,591109863049, 2222121888117,8374151243258,31630394287364, 119725350703472] |