n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 3 |
4 | 10 |
5 | 33 |
6 | 147 |
7 | 620 |
8 | 2821 |
9 | 12942 |
10 | 60639 |
11 | 286190 |
12 | 1364621 |
13 | 6545430 |
14 | 31586358 |
15 | 153143956 |
16 | 745700845 |
17 | 3644379397 |
18 | 17869651166 |
19 | 87877879487 |
20 | 433301253231 |
21 | 2141584454057 |
22 | 10607707971062 |
23 | 52646117638427 |
24 | 261756764824964 |
25 | 1303625908234997 |
26 | 6502430891223011 |
27 | 32480041218465452 |
28 | 162454295068924189 |
29 | 813541940383789255 |
30 | 4078750395194965720 |
[1,1,3,10,33,147,620,2821,12942,60639,286190, 1364621,6545430,31586358,153143956,745700845, 3644379397,17869651166,87877879487,433301253231, 2141584454057,10607707971062,52646117638427, 261756764824964,1303625908234997,6502430891223011, 32480041218465452,162454295068924189, 813541940383789255,4078750395194965720] |