n | a(n) |
---|---|
1 | 4 |
2 | 6 |
3 | 17 |
4 | 45 |
5 | 131 |
6 | 381 |
7 | 1123 |
8 | 3334 |
9 | 9973 |
10 | 29991 |
11 | 90601 |
12 | 274746 |
13 | 835844 |
14 | 2549874 |
15 | 7797469 |
16 | 23894630 |
17 | 73358721 |
18 | 225589420 |
19 | 694745922 |
20 | 2142444490 |
21 | 6614766985 |
22 | 20445300258 |
23 | 63256499281 |
24 | 195890524486 |
25 | 607136782567 |
26 | 1883199766658 |
27 | 5845450449249 |
28 | 18156369461770 |
29 | 56429925440218 |
[4,6,17,45,131,381,1123,3334,9973,29991,90601, 274746,835844,2549874,7797469,23894630,73358721, 225589420,694745922,2142444490,6614766985, 20445300258,63256499281,195890524486,607136782567, 1883199766658,5845450449249,18156369461770, 56429925440218] |