n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 7 |
3 | 27 |
4 | 116 |
5 | 518 |
6 | 2389 |
7 | 11220 |
8 | 53442 |
9 | 257054 |
10 | 1245629 |
11 | 6069967 |
12 | 29708772 |
13 | 145907273 |
14 | 718561088 |
15 | 3546635941 |
16 | 17537173481 |
17 | 86846891342 |
18 | 430617149461 |
19 | 2137387582659 |
20 | 10618408969182 |
21 | 52791279200787 |
22 | 262629912189815 |
23 | 1307273086691972 |
24 | 6510224684733486 |
25 | 32434397962284315 |
26 | 161648950425814412 |
[1,2,7,27,116,518,2389,11220,53442,257054,1245629, 6069967,29708772,145907273,718561088,3546635941, 17537173481,86846891342,430617149461, 2137387582659,10618408969182,52791279200787, 262629912189815,1307273086691972,6510224684733486, 32434397962284315,161648950425814412] |