n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 2 |
4 | 3 |
5 | 6 |
6 | 10 |
7 | 20 |
8 | 35 |
9 | 70 |
10 | 126 |
11 | 252 |
12 | 462 |
13 | 924 |
14 | 1716 |
15 | 3432 |
16 | 6435 |
17 | 12870 |
18 | 24310 |
19 | 48620 |
20 | 92378 |
21 | 184756 |
22 | 352716 |
23 | 705432 |
24 | 1352078 |
25 | 2704156 |
26 | 5200300 |
27 | 10400600 |
28 | 20058300 |
29 | 40116600 |
30 | 77558760 |
31 | 155117520 |
32 | 300540195 |
33 | 601080390 |
34 | 1166803110 |
35 | 2333606220 |
36 | 4537567650 |
[1,1,1,2,3,6,10,20,35,70,126,252,462,924,1716, 3432,6435,12870,24310,48620,92378,184756,352716, 705432,1352078,2704156,5200300,10400600,20058300, 40116600,77558760,155117520,300540195,601080390, 1166803110,2333606220,4537567650] |