n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 9 |
3 | 25 |
4 | 69 |
5 | 189 |
6 | 519 |
7 | 1431 |
8 | 3969 |
9 | 11077 |
10 | 31107 |
11 | 87867 |
12 | 249523 |
13 | 711987 |
14 | 2040201 |
15 | 5868009 |
16 | 16932645 |
17 | 49000221 |
18 | 142153251 |
19 | 413303355 |
20 | 1203986079 |
21 | 3513322887 |
22 | 10267781301 |
23 | 30048790725 |
24 | 88045917831 |
25 | 258268671963 |
26 | 758350570077 |
27 | 2228771296357 |
28 | 6555782946621 |
29 | 19298241524061 |
30 | 56848508815063 |
[1,3,9,25,69,189,519,1431,3969,11077,31107,87867, 249523,711987,2040201,5868009,16932645,49000221, 142153251,413303355,1203986079,3513322887, 10267781301,30048790725,88045917831,258268671963, 758350570077,2228771296357,6555782946621, 19298241524061,56848508815063] |