n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 12 |
4 | 45 |
5 | 176 |
6 | 693 |
7 | 2752 |
8 | 10965 |
9 | 43776 |
10 | 174933 |
11 | 699392 |
12 | 2796885 |
13 | 11186176 |
14 | 44741973 |
15 | 178962432 |
16 | 715838805 |
17 | 2863333376 |
18 | 11453289813 |
19 | 45813071872 |
20 | 183252112725 |
21 | 733008101376 |
22 | 2932031706453 |
23 | 11728125427712 |
24 | 46912498914645 |
25 | 187649990066176 |
[1,3,12,45,176,693,2752,10965,43776,174933,699392, 2796885,11186176,44741973,178962432,715838805, 2863333376,11453289813,45813071872,183252112725, 733008101376,2932031706453,11728125427712, 46912498914645,187649990066176] |