n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 7 |
3 | 23 |
4 | 85 |
5 | 314 |
6 | 1207 |
7 | 4682 |
8 | 18493 |
9 | 73688 |
10 | 296671 |
11 | 1202849 |
12 | 4910689 |
13 | 20158436 |
14 | 83169871 |
15 | 344628527 |
16 | 1433631973 |
17 | 5984532728 |
18 | 25060514887 |
19 | 105240685511 |
20 | 443102517025 |
21 | 1870054761632 |
22 | 7909539602647 |
23 | 33521289826778 |
24 | 142330494633985 |
25 | 605375433105734 |
26 | 2578988979186127 |
27 | 11003364185437517 |
[1,2,7,23,85,314,1207,4682,18493,73688,296671, 1202849,4910689,20158436,83169871,344628527, 1433631973,5984532728,25060514887,105240685511, 443102517025,1870054761632,7909539602647, 33521289826778,142330494633985,605375433105734, 2578988979186127,11003364185437517] |