n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 3 |
5 | 9 |
6 | 25 |
7 | 71 |
8 | 219 |
9 | 689 |
10 | 2189 |
11 | 7059 |
12 | 23091 |
13 | 76331 |
14 | 254489 |
15 | 855057 |
16 | 2892611 |
17 | 9843695 |
18 | 33674049 |
19 | 115735093 |
20 | 399448699 |
21 | 1383893277 |
22 | 4811005765 |
23 | 16777546935 |
24 | 58676543307 |
25 | 205751099671 |
26 | 723221934973 |
27 | 2547846317025 |
28 | 8994482626499 |
29 | 31813908928389 |
30 | 112729816817649 |
31 | 400119890812663 |
32 | 1422409369378787 |
33 | 5064073900824483 |
34 | 18054192195882181 |
35 | 64450109043795285 |
36 | 230358773955266667 |
[1,1,1,3,9,25,71,219,689,2189,7059,23091,76331, 254489,855057,2892611,9843695,33674049,115735093, 399448699,1383893277,4811005765,16777546935, 58676543307,205751099671,723221934973, 2547846317025,8994482626499,31813908928389, 112729816817649,400119890812663,1422409369378787, 5064073900824483,18054192195882181, 64450109043795285,230358773955266667] |