n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 15 |
3 | 85 |
4 | 531 |
5 | 3545 |
6 | 24833 |
7 | 180251 |
8 | 1344163 |
9 | 10237001 |
10 | 79287469 |
11 | 622596063 |
12 | 4945078477 |
13 | 39658283943 |
14 | 320689293119 |
15 | 2611817435525 |
16 | 21405148148051 |
17 | 176396318594937 |
18 | 1460795339822349 |
19 | 12150467810552223 |
20 | 101463416752305385 |
21 | 850306144532133787 |
[1,3,15,85,531,3545,24833,180251,1344163,10237001, 79287469,622596063,4945078477,39658283943, 320689293119,2611817435525,21405148148051, 176396318594937,1460795339822349, 12150467810552223,101463416752305385, 850306144532133787] |