n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 2 |
4 | 2 |
5 | 3 |
6 | 4 |
7 | 5 |
8 | 6 |
9 | 8 |
10 | 26 |
11 | 81 |
12 | 243 |
13 | 693 |
14 | 1887 |
15 | 4932 |
16 | 12418 |
17 | 30288 |
18 | 72026 |
19 | 167989 |
20 | 541500 |
21 | 1635975 |
22 | 4662579 |
23 | 12580587 |
24 | 32228307 |
25 | 78662108 |
26 | 183988734 |
27 | 415466897 |
28 | 912816164 |
29 | 1965020012 |
30 | 6121555788 |
31 | 17573354640 |
32 | 46896718806 |
[1,1,2,2,3,4,5,6,8,26,81,243,693,1887,4932,12418, 30288,72026,167989,541500,1635975,4662579, 12580587,32228307,78662108,183988734,415466897, 912816164,1965020012,6121555788,17573354640, 46896718806] |