n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 7 |
3 | 45 |
4 | 271 |
5 | 1244 |
6 | 7289 |
7 | 40841 |
8 | 201103 |
9 | 1044720 |
10 | 5172055 |
11 | 24532739 |
12 | 116470697 |
13 | 546142112 |
14 | 2505755203 |
15 | 11318525367 |
16 | 50046273319 |
17 | 219637249886 |
18 | 944072864849 |
19 | 4029243438335 |
20 | 16977344151163 |
21 | 70370874105726 |
22 | 289702060533067 |
23 | 1177283903981765 |
24 | 4740700176816041 |
[1,2,7,45,271,1244,7289,40841,201103,1044720, 5172055,24532739,116470697,546142112,2505755203, 11318525367,50046273319,219637249886,944072864849, 4029243438335,16977344151163,70370874105726, 289702060533067,1177283903981765,4740700176816041] |