n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 4 |
3 | 10 |
4 | 25 |
5 | 70 |
6 | 196 |
7 | 574 |
8 | 1681 |
9 | 5002 |
10 | 14884 |
11 | 44530 |
12 | 133225 |
13 | 399310 |
14 | 1196836 |
15 | 3589414 |
16 | 10764961 |
17 | 32291602 |
18 | 96864964 |
19 | 290585050 |
20 | 871725625 |
21 | 2615147350 |
22 | 7845353476 |
23 | 23535971854 |
24 | 70607649841 |
25 | 211822683802 |
26 | 635467254244 |
27 | 1906400965570 |
28 | 5719200505225 |
29 | 17157599124190 |
[1,2,4,10,25,70,196,574,1681,5002,14884,44530, 133225,399310,1196836,3589414,10764961,32291602, 96864964,290585050,871725625,2615147350, 7845353476,23535971854,70607649841,211822683802, 635467254244,1906400965570,5719200505225, 17157599124190] |