n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 5 |
4 | 15 |
5 | 40 |
6 | 95 |
7 | 213 |
8 | 455 |
9 | 940 |
10 | 1890 |
11 | 3720 |
12 | 7194 |
13 | 13710 |
14 | 25805 |
15 | 48055 |
16 | 88665 |
17 | 162272 |
18 | 294865 |
19 | 532395 |
20 | 955795 |
21 | 1707110 |
22 | 3034836 |
23 | 5372400 |
24 | 9473700 |
25 | 16646700 |
26 | 29155225 |
27 | 50908793 |
28 | 88644915 |
29 | 153952120 |
30 | 266726195 |
31 | 461066385 |
32 | 795320159 |
[0,1,5,15,40,95,213,455,940,1890,3720,7194,13710, 25805,48055,88665,162272,294865,532395,955795, 1707110,3034836,5372400,9473700,16646700,29155225, 50908793,88644915,153952120,266726195,461066385, 795320159] |