n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 13 |
4 | 53 |
5 | 301 |
6 | 1951 |
7 | 13203 |
8 | 105673 |
9 | 919873 |
10 | 8472491 |
11 | 86799241 |
12 | 948033373 |
13 | 10924180853 |
14 | 135880443063 |
15 | 1780842778471 |
16 | 24496224075921 |
17 | 357483642165313 |
18 | 5454904465819603 |
19 | 86909842633518373 |
20 | 1453042115780967941 |
21 | 25262405474642837341 |
[1,1,3,13,53,301,1951,13203,105673,919873,8472491, 86799241,948033373,10924180853,135880443063, 1780842778471,24496224075921,357483642165313, 5454904465819603,86909842633518373, 1453042115780967941,25262405474642837341] |