n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 7 |
3 | 28 |
4 | 104 |
5 | 415 |
6 | 1631 |
7 | 6438 |
8 | 25557 |
9 | 101320 |
10 | 402620 |
11 | 1600973 |
12 | 6369850 |
13 | 25362023 |
14 | 101021833 |
15 | 402558824 |
16 | 1604694342 |
17 | 6398518221 |
18 | 25519847999 |
19 | 101805661146 |
20 | 406209454697 |
21 | 1621073551580 |
22 | 6470257616586 |
23 | 25828532256195 |
[1,2,7,28,104,415,1631,6438,25557,101320,402620, 1600973,6369850,25362023,101021833,402558824, 1604694342,6398518221,25519847999,101805661146, 406209454697,1621073551580,6470257616586, 25828532256195] |