n | a(n) |
---|---|
0 | 1 |
1 | 10 |
2 | 55 |
3 | 220 |
4 | 715 |
5 | 2002 |
6 | 5005 |
7 | 11440 |
8 | 24310 |
9 | 48619 |
10 | 92368 |
11 | 167905 |
12 | 293710 |
13 | 496705 |
14 | 815188 |
15 | 1302499 |
16 | 2031535 |
17 | 3100240 |
18 | 4638205 |
19 | 6814522 |
20 | 9847045 |
21 | 14013220 |
22 | 19662655 |
23 | 27231610 |
24 | 37259596 |
[1,10,55,220,715,2002,5005,11440,24310,48619, 92368,167905,293710,496705,815188,1302499,2031535, 3100240,4638205,6814522,9847045,14013220,19662655, 27231610,37259596] |