n | a(n) |
---|---|
1 | 2 |
2 | 13 |
3 | 25 |
4 | 78 |
5 | 233 |
6 | 779 |
7 | 2359 |
8 | 7024 |
9 | 21572 |
10 | 66763 |
11 | 202511 |
12 | 620170 |
13 | 1905989 |
14 | 5855288 |
15 | 17976712 |
16 | 55219917 |
17 | 169749644 |
18 | 521916367 |
19 | 1604541689 |
20 | 4934209891 |
21 | 15175681053 |
22 | 46676428419 |
23 | 143573044675 |
24 | 441645870265 |
25 | 1358607323981 |
26 | 4179521702706 |
[2,13,25,78,233,779,2359,7024,21572,66763,202511, 620170,1905989,5855288,17976712,55219917, 169749644,521916367,1604541689,4934209891, 15175681053,46676428419,143573044675,441645870265, 1358607323981,4179521702706] |