n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 14 |
5 | 42 |
6 | 132 |
7 | 429 |
8 | 1430 |
9 | 4862 |
10 | 16795 |
11 | 58766 |
12 | 207783 |
13 | 740924 |
14 | 2660139 |
15 | 9603089 |
16 | 34818270 |
17 | 126676726 |
18 | 462125928 |
19 | 1689438278 |
20 | 6186432967 |
21 | 22682699779 |
22 | 83249302471 |
23 | 305773834030 |
24 | 1123771473120 |
25 | 4131947428007 |
26 | 15197952958467 |
27 | 55915691993228 |
[1,1,2,5,14,42,132,429,1430,4862,16795,58766, 207783,740924,2660139,9603089,34818270,126676726, 462125928,1689438278,6186432967,22682699779, 83249302471,305773834030,1123771473120, 4131947428007,15197952958467,55915691993228] |