n | a(n) |
---|---|
1 | 1 |
2 | 13 |
3 | 30 |
4 | 74 |
5 | 287 |
6 | 841 |
7 | 2463 |
8 | 7953 |
9 | 24428 |
10 | 74660 |
11 | 233017 |
12 | 721069 |
13 | 2226921 |
14 | 6907921 |
15 | 21399342 |
16 | 66252970 |
17 | 205308499 |
18 | 636102161 |
19 | 1970540971 |
20 | 6105562057 |
21 | 18917255184 |
22 | 58610713832 |
23 | 181598709121 |
24 | 562663895105 |
25 | 1743342282089 |
26 | 5401567886229 |
[1,13,30,74,287,841,2463,7953,24428,74660,233017, 721069,2226921,6907921,21399342,66252970, 205308499,636102161,1970540971,6105562057, 18917255184,58610713832,181598709121,562663895105, 1743342282089,5401567886229] |