n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 7 |
3 | 27 |
4 | 117 |
5 | 514 |
6 | 2327 |
7 | 10642 |
8 | 49357 |
9 | 230744 |
10 | 1087567 |
11 | 5155525 |
12 | 24567985 |
13 | 117557404 |
14 | 564554431 |
15 | 2719378931 |
16 | 13133588981 |
17 | 63574966648 |
18 | 308364056247 |
19 | 1498342592035 |
20 | 7291987338193 |
21 | 35538167303224 |
22 | 173419545231847 |
23 | 847231084853706 |
24 | 4143441713783393 |
25 | 20283190601772934 |
26 | 99378472344960367 |
[1,2,7,27,117,514,2327,10642,49357,230744,1087567, 5155525,24567985,117557404,564554431,2719378931, 13133588981,63574966648,308364056247, 1498342592035,7291987338193,35538167303224, 173419545231847,847231084853706,4143441713783393, 20283190601772934,99378472344960367] |