n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 1 |
5 | 2 |
6 | 3 |
7 | 4 |
8 | 6 |
9 | 8 |
10 | 10 |
11 | 12 |
12 | 15 |
13 | 18 |
14 | 21 |
15 | 24 |
16 | 28 |
17 | 32 |
18 | 36 |
19 | 40 |
20 | 45 |
21 | 50 |
22 | 55 |
23 | 60 |
24 | 66 |
25 | 72 |
26 | 78 |
27 | 84 |
28 | 91 |
29 | 98 |
30 | 105 |
31 | 112 |
32 | 120 |
33 | 128 |
34 | 136 |
35 | 144 |
36 | 153 |
37 | 162 |
38 | 171 |
39 | 180 |
40 | 190 |
41 | 200 |
42 | 210 |
43 | 220 |
44 | 231 |
45 | 242 |
46 | 253 |
47 | 264 |
48 | 276 |
49 | 288 |
50 | 300 |
51 | 312 |
52 | 325 |
53 | 338 |
54 | 351 |
55 | 364 |
56 | 378 |
57 | 392 |
58 | 406 |
59 | 420 |
60 | 435 |
61 | 450 |
[0,0,0,0,1,2,3,4,6,8,10,12,15,18,21,24,28,32,36, 40,45,50,55,60,66,72,78,84,91,98,105,112,120,128, 136,144,153,162,171,180,190,200,210,220,231,242, 253,264,276,288,300,312,325,338,351,364,378,392, 406,420,435,450] |