n | a(n) |
---|---|
9 | 1 |
10 | 0 |
11 | 0 |
12 | 0 |
13 | 0 |
14 | 0 |
15 | 0 |
16 | 0 |
17 | 0 |
18 | 1 |
19 | 10 |
20 | 55 |
21 | 220 |
22 | 715 |
23 | 2002 |
24 | 5005 |
25 | 11440 |
26 | 24310 |
27 | 48621 |
28 | 92388 |
29 | 168025 |
30 | 294260 |
31 | 498850 |
32 | 822712 |
33 | 1327029 |
34 | 2107325 |
35 | 3324750 |
36 | 5280276 |
37 | 8595025 |
38 | 14648920 |
39 | 26637015 |
40 | 52076915 |
41 | 108669142 |
42 | 237787000 |
43 | 535084341 |
44 | 1219016810 |
45 | 2782344676 |
[1,0,0,0,0,0,0,0,0,1,10,55,220,715,2002,5005, 11440,24310,48621,92388,168025,294260,498850, 822712,1327029,2107325,3324750,5280276,8595025, 14648920,26637015,52076915,108669142,237787000, 535084341,1219016810,2782344676] |