n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 3 |
4 | 3 |
5 | 6 |
6 | 15 |
7 | 16 |
8 | 12 |
9 | 10 |
10 | 45 |
11 | 110 |
12 | 195 |
13 | 210 |
14 | 120 |
15 | 20 |
16 | 15 |
17 | 105 |
18 | 435 |
19 | 1320 |
20 | 2841 |
21 | 4410 |
22 | 4845 |
23 | 3360 |
24 | 1350 |
25 | 300 |
26 | 30 |
27 | 21 |
28 | 210 |
29 | 1295 |
30 | 5880 |
31 | 19887 |
32 | 51954 |
33 | 106785 |
34 | 171360 |
35 | 208565 |
36 | 186375 |
37 | 120855 |
38 | 56805 |
39 | 19110 |
40 | 4410 |
41 | 630 |
42 | 42 |
[0,1,3,3,6,15,16,12,10,45,110,195,210,120,20,15, 105,435,1320,2841,4410,4845,3360,1350,300,30,21, 210,1295,5880,19887,51954,106785,171360,208565, 186375,120855,56805,19110,4410,630,42] |