n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 5 |
4 | 35 |
5 | 70 |
6 | 210 |
7 | 330 |
8 | 715 |
9 | 1001 |
10 | 1820 |
11 | 2380 |
12 | 3876 |
13 | 4845 |
14 | 7315 |
15 | 8855 |
16 | 12650 |
17 | 14950 |
18 | 20475 |
19 | 23751 |
20 | 31465 |
21 | 35960 |
22 | 46376 |
23 | 52360 |
24 | 66045 |
25 | 73815 |
26 | 91390 |
27 | 101270 |
28 | 123410 |
29 | 135751 |
30 | 163185 |
31 | 178365 |
32 | 211876 |
33 | 230300 |
34 | 270725 |
35 | 292825 |
36 | 341055 |
37 | 367290 |
38 | 424270 |
[0,1,5,35,70,210,330,715,1001,1820,2380,3876,4845, 7315,8855,12650,14950,20475,23751,31465,35960, 46376,52360,66045,73815,91390,101270,123410, 135751,163185,178365,211876,230300,270725,292825, 341055,367290,424270] |