n | a(n) |
---|---|
1 | 1 |
2 | 5 |
3 | 20 |
4 | 63 |
5 | 130 |
6 | 400 |
7 | 650 |
8 | 1785 |
9 | 3094 |
10 | 7150 |
11 | 10858 |
12 | 30240 |
13 | 39610 |
14 | 94250 |
15 | 158600 |
16 | 336567 |
17 | 463130 |
18 | 1175720 |
19 | 1513522 |
20 | 3693690 |
21 | 5473000 |
22 | 10803710 |
23 | 15188210 |
24 | 39412800 |
25 | 48841275 |
26 | 103184050 |
27 | 161062760 |
28 | 333701550 |
29 | 432980818 |
30 | 1081652000 |
31 | 1295110778 |
32 | 2973391785 |
33 | 4299985160 |
[1,5,20,63,130,400,650,1785,3094,7150,10858,30240, 39610,94250,158600,336567,463130,1175720,1513522, 3693690,5473000,10803710,15188210,39412800, 48841275,103184050,161062760,333701550,432980818, 1081652000,1295110778,2973391785,4299985160] |