n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 9 |
3 | 27 |
4 | 75 |
5 | 213 |
6 | 585 |
7 | 1623 |
8 | 4425 |
9 | 12123 |
10 | 32883 |
11 | 89415 |
12 | 241557 |
13 | 653649 |
14 | 1760427 |
15 | 4747005 |
16 | 12754593 |
17 | 34301463 |
18 | 91990575 |
19 | 246880023 |
20 | 661075149 |
21 | 1771199169 |
22 | 4736741853 |
23 | 12673587057 |
24 | 33856816431 |
25 | 90482953989 |
26 | 241499070195 |
27 | 644781165933 |
28 | 1719559634451 |
29 | 4587222964881 |
30 | 12225165127887 |
[1,3,9,27,75,213,585,1623,4425,12123,32883,89415, 241557,653649,1760427,4747005,12754593,34301463, 91990575,246880023,661075149,1771199169, 4736741853,12673587057,33856816431,90482953989, 241499070195,644781165933,1719559634451, 4587222964881,12225165127887] |