n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 7 |
3 | 28 |
4 | 122 |
5 | 553 |
6 | 2571 |
7 | 12160 |
8 | 58208 |
9 | 281102 |
10 | 1366505 |
11 | 6676481 |
12 | 32747954 |
13 | 161124710 |
14 | 794716382 |
15 | 3927618936 |
16 | 19442645394 |
17 | 96375419793 |
18 | 478259944819 |
19 | 2375582028014 |
20 | 11809212355996 |
21 | 58744206985928 |
22 | 292388266077461 |
23 | 1456030648082389 |
24 | 7253832887596507 |
25 | 36151517763970697 |
26 | 180229899010820326 |
[1,2,7,28,122,553,2571,12160,58208,281102,1366505, 6676481,32747954,161124710,794716382,3927618936, 19442645394,96375419793,478259944819, 2375582028014,11809212355996,58744206985928, 292388266077461,1456030648082389,7253832887596507, 36151517763970697,180229899010820326] |