n | a(n) |
---|---|
0 | 1 |
1 | 6 |
2 | 30 |
3 | 138 |
4 | 606 |
5 | 2586 |
6 | 10830 |
7 | 44778 |
8 | 183486 |
9 | 747066 |
10 | 3027630 |
11 | 12228618 |
12 | 49268766 |
13 | 198137946 |
14 | 795740430 |
15 | 3192527658 |
16 | 12798808446 |
17 | 51281327226 |
18 | 205383589230 |
19 | 822309197898 |
20 | 3291561314526 |
21 | 13173218826906 |
22 | 52713796014030 |
23 | 210917946175338 |
24 | 843860071059006 |
25 | 3376005143308986 |
26 | 13505715150454830 |
[1,6,30,138,606,2586,10830,44778,183486,747066, 3027630,12228618,49268766,198137946,795740430, 3192527658,12798808446,51281327226,205383589230, 822309197898,3291561314526,13173218826906, 52713796014030,210917946175338,843860071059006, 3376005143308986,13505715150454830] |