n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 1 |
4 | 4 |
5 | 4 |
6 | 4 |
7 | 4 |
8 | 10 |
9 | 10 |
10 | 10 |
11 | 10 |
12 | 20 |
13 | 20 |
14 | 20 |
15 | 20 |
16 | 35 |
17 | 35 |
18 | 35 |
19 | 35 |
20 | 56 |
21 | 56 |
22 | 56 |
23 | 56 |
24 | 84 |
25 | 84 |
26 | 84 |
27 | 84 |
28 | 120 |
29 | 120 |
30 | 120 |
31 | 120 |
32 | 165 |
33 | 165 |
34 | 165 |
35 | 165 |
36 | 220 |
37 | 220 |
38 | 220 |
39 | 220 |
40 | 286 |
41 | 286 |
42 | 286 |
43 | 286 |
44 | 364 |
45 | 364 |
46 | 364 |
47 | 364 |
48 | 455 |
49 | 455 |
50 | 455 |
51 | 455 |
[1,1,1,1,4,4,4,4,10,10,10,10,20,20,20,20,35,35,35, 35,56,56,56,56,84,84,84,84,120,120,120,120,165, 165,165,165,220,220,220,220,286,286,286,286,364, 364,364,364,455,455,455,455] |