n | a(n) |
---|---|
0 | 1 |
1 | 10 |
2 | 55 |
3 | 220 |
4 | 715 |
5 | 2002 |
6 | 5005 |
7 | 11440 |
8 | 24310 |
9 | 48620 |
10 | 92377 |
11 | 167950 |
12 | 293875 |
13 | 497200 |
14 | 816475 |
15 | 1305502 |
16 | 2037970 |
17 | 3113110 |
18 | 4662515 |
19 | 6858280 |
20 | 9922627 |
21 | 14139190 |
22 | 19866145 |
23 | 27551380 |
24 | 37749910 |
25 | 51143752 |
26 | 68564485 |
27 | 91018730 |
28 | 119716795 |
29 | 156104740 |
30 | 201900127 |
[1,10,55,220,715,2002,5005,11440,24310,48620, 92377,167950,293875,497200,816475,1305502,2037970, 3113110,4662515,6858280,9922627,14139190,19866145, 27551380,37749910,51143752,68564485,91018730, 119716795,156104740,201900127] |