n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 11 |
4 | 46 |
5 | 207 |
6 | 979 |
7 | 4797 |
8 | 24138 |
9 | 123998 |
10 | 647615 |
11 | 3428493 |
12 | 18356714 |
13 | 99229015 |
14 | 540807165 |
15 | 2968468275 |
16 | 16395456762 |
17 | 91053897066 |
18 | 508151297602 |
19 | 2848290555562 |
20 | 16028132445156 |
21 | 90516256568235 |
22 | 512831902620465 |
23 | 2914112388802779 |
24 | 16604034506299314 |
[1,1,3,11,46,207,979,4797,24138,123998,647615, 3428493,18356714,99229015,540807165,2968468275, 16395456762,91053897066,508151297602, 2848290555562,16028132445156,90516256568235, 512831902620465,2914112388802779, 16604034506299314] |