n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 21 |
4 | 93 |
5 | 405 |
6 | 1773 |
7 | 7749 |
8 | 33885 |
9 | 148149 |
10 | 647757 |
11 | 2832165 |
12 | 12383037 |
13 | 54142101 |
14 | 236724525 |
15 | 1035026181 |
16 | 4525425693 |
17 | 19786434165 |
18 | 86511856653 |
19 | 378254174949 |
20 | 1653833664765 |
21 | 7231026043989 |
22 | 31616080120557 |
23 | 138234396625605 |
24 | 604399670600157 |
25 | 2642605391554101 |
[1,1,5,21,93,405,1773,7749,33885,148149,647757, 2832165,12383037,54142101,236724525,1035026181, 4525425693,19786434165,86511856653,378254174949, 1653833664765,7231026043989,31616080120557, 138234396625605,604399670600157,2642605391554101] |