n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 8 |
3 | 34 |
4 | 134 |
5 | 498 |
6 | 1786 |
7 | 6274 |
8 | 21778 |
9 | 75074 |
10 | 257762 |
11 | 882946 |
12 | 3020354 |
13 | 10323714 |
14 | 35270530 |
15 | 120467458 |
16 | 411394306 |
17 | 1404773378 |
18 | 4796567042 |
19 | 16377245698 |
20 | 55916897282 |
21 | 190915194882 |
22 | 651831179266 |
23 | 2225502715906 |
24 | 7598365282306 |
25 | 25942489251842 |
26 | 88573293551618 |
[1,2,8,34,134,498,1786,6274,21778,75074,257762, 882946,3020354,10323714,35270530,120467458, 411394306,1404773378,4796567042,16377245698, 55916897282,190915194882,651831179266, 2225502715906,7598365282306,25942489251842, 88573293551618] |