n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 1 |
3 | 3 |
4 | 4 |
5 | 10 |
6 | 15 |
7 | 35 |
8 | 56 |
9 | 126 |
10 | 210 |
11 | 462 |
12 | 792 |
13 | 1716 |
14 | 3003 |
15 | 6435 |
16 | 11440 |
17 | 24310 |
18 | 43758 |
19 | 92378 |
20 | 167960 |
21 | 352716 |
22 | 646646 |
23 | 1352078 |
24 | 2496144 |
25 | 5200300 |
26 | 9657700 |
27 | 20058300 |
28 | 37442160 |
29 | 77558760 |
30 | 145422675 |
31 | 300540195 |
32 | 565722720 |
33 | 1166803110 |
34 | 2203961430 |
35 | 4537567650 |
[0,1,1,3,4,10,15,35,56,126,210,462,792,1716,3003, 6435,11440,24310,43758,92378,167960,352716,646646, 1352078,2496144,5200300,9657700,20058300,37442160, 77558760,145422675,300540195,565722720,1166803110, 2203961430,4537567650] |