n | a(n) |
---|---|
1 | 1 |
2 | 13 |
3 | 37 |
4 | 205 |
5 | 793 |
6 | 3673 |
7 | 15481 |
8 | 68485 |
9 | 295453 |
10 | 1291237 |
11 | 5605489 |
12 | 24418801 |
13 | 106183729 |
14 | 462160957 |
15 | 2010578005 |
16 | 8748949309 |
17 | 38065839625 |
18 | 165631750345 |
19 | 720670846249 |
20 | 3135725035573 |
21 | 13643790283981 |
22 | 59365501769941 |
[1,13,37,205,793,3673,15481,68485,295453,1291237, 5605489,24418801,106183729,462160957,2010578005, 8748949309,38065839625,165631750345,720670846249, 3135725035573,13643790283981,59365501769941] |