n | a(n) |
---|---|
1 | 6 |
2 | 30 |
3 | 114 |
4 | 486 |
5 | 1986 |
6 | 8202 |
7 | 33858 |
8 | 140262 |
9 | 580938 |
10 | 2407710 |
11 | 9980394 |
12 | 41384106 |
13 | 171634482 |
14 | 711932538 |
15 | 2953394214 |
16 | 12253006566 |
17 | 50838740046 |
18 | 210946278126 |
19 | 875324356398 |
20 | 3632308990686 |
21 | 15073375131306 |
22 | 62553271396074 |
[6,30,114,486,1986,8202,33858,140262,580938, 2407710,9980394,41384106,171634482,711932538, 2953394214,12253006566,50838740046,210946278126, 875324356398,3632308990686,15073375131306, 62553271396074] |