n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 9 |
4 | 35 |
5 | 131 |
6 | 539 |
7 | 2178 |
8 | 9466 |
9 | 39944 |
10 | 178102 |
11 | 779382 |
12 | 3535378 |
13 | 15837243 |
14 | 72810285 |
15 | 331162556 |
16 | 1538465914 |
17 | 7082275082 |
18 | 33160005984 |
19 | 154175852070 |
20 | 726421380590 |
21 | 3403523284138 |
22 | 16121460813022 |
23 | 75997260757594 |
24 | 361573678921754 |
25 | 1713363345487223 |
26 | 8182019330408203 |
27 | 38944062120025760 |
[1,1,3,9,35,131,539,2178,9466,39944,178102,779382, 3535378,15837243,72810285,331162556,1538465914, 7082275082,33160005984,154175852070,726421380590, 3403523284138,16121460813022,75997260757594, 361573678921754,1713363345487223,8182019330408203, 38944062120025760] |