n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 4 |
4 | 10 |
5 | 10 |
6 | 20 |
7 | 20 |
8 | 35 |
9 | 35 |
10 | 56 |
11 | 56 |
12 | 84 |
13 | 84 |
14 | 120 |
15 | 120 |
16 | 165 |
17 | 165 |
18 | 220 |
19 | 220 |
20 | 286 |
21 | 286 |
22 | 364 |
23 | 364 |
24 | 455 |
25 | 455 |
26 | 560 |
27 | 560 |
28 | 680 |
29 | 680 |
30 | 816 |
31 | 816 |
32 | 969 |
33 | 969 |
34 | 1140 |
35 | 1140 |
36 | 1330 |
37 | 1330 |
38 | 1540 |
39 | 1540 |
40 | 1771 |
41 | 1771 |
42 | 2024 |
43 | 2024 |
44 | 2300 |
45 | 2300 |
46 | 2600 |
47 | 2600 |
48 | 2925 |
49 | 2925 |
50 | 3276 |
51 | 3276 |
[1,1,4,4,10,10,20,20,35,35,56,56,84,84,120,120, 165,165,220,220,286,286,364,364,455,455,560,560, 680,680,816,816,969,969,1140,1140,1330,1330,1540, 1540,1771,1771,2024,2024,2300,2300,2600,2600,2925, 2925,3276,3276] |