n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 15 |
4 | 51 |
5 | 211 |
6 | 795 |
7 | 3057 |
8 | 13001 |
9 | 52581 |
10 | 213253 |
11 | 925853 |
12 | 3879469 |
13 | 16223453 |
14 | 71442225 |
15 | 305928395 |
16 | 1305276203 |
17 | 5807259867 |
18 | 25240311855 |
19 | 109232894395 |
20 | 489780437147 |
21 | 2152075952175 |
22 | 9413280045751 |
23 | 42466522816087 |
24 | 188164257550383 |
25 | 829897208393779 |
26 | 3762535997730743 |
27 | 16782610498398015 |
[1,1,5,15,51,211,795,3057,13001,52581,213253, 925853,3879469,16223453,71442225,305928395, 1305276203,5807259867,25240311855,109232894395, 489780437147,2152075952175,9413280045751, 42466522816087,188164257550383,829897208393779, 3762535997730743,16782610498398015] |