n | a(n) |
---|---|
0 | 1 |
1 | 6 |
2 | 30 |
3 | 126 |
4 | 462 |
5 | 1566 |
6 | 5070 |
7 | 15966 |
8 | 49422 |
9 | 151326 |
10 | 460110 |
11 | 1392606 |
12 | 4202382 |
13 | 12656286 |
14 | 38067150 |
15 | 114398046 |
16 | 343587342 |
17 | 1031548446 |
18 | 3096218190 |
19 | 9291800286 |
20 | 27881692302 |
21 | 83657659806 |
22 | 250998145230 |
23 | 753044767326 |
24 | 2259234965262 |
25 | 6777906222366 |
26 | 20334121320270 |
27 | 61003169267166 |
28 | 183011118414222 |
[1,6,30,126,462,1566,5070,15966,49422,151326, 460110,1392606,4202382,12656286,38067150, 114398046,343587342,1031548446,3096218190, 9291800286,27881692302,83657659806,250998145230, 753044767326,2259234965262,6777906222366, 20334121320270,61003169267166,183011118414222] |