cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A218442 a(n) = Sum_{k=0..n} floor(n/(3*k + 1)).

Table of values

n a(n)
0 0
1 1
2 2
3 3
4 5
5 6
6 7
7 9
8 11
9 12
10 14
11 15
12 17
13 19
14 21
15 22
16 25
17 26
18 27
19 29
20 32
21 34
22 36
23 37
24 39
25 41
26 43
27 44
28 48
29 49
30 51
31 53
32 56
33 57
34 59
35 61
36 63
37 65
38 67
39 69
40 73
41 74
42 76
43 78
44 81
45 82
46 84
47 85
48 88
49 91
50 94
51 95
52 99
53 100
54 101
55 103
56 107
57 109
58 111
59 112
60 115
61 117
62 119
63 121
64 125
65 127
66 129
67 131
68 134
69 135
70 139
71 140
72 142
73 144
74 146
75 148
76 152

List of values

[0, 1, 2, 3, 5, 6, 7, 9, 11, 12, 14, 15, 17, 19, 21, 22, 25, 26, 27, 29, 32, 34, 36, 37, 39, 41, 43, 44, 48, 49, 51, 53, 56, 57, 59, 61, 63, 65, 67, 69, 73, 74, 76, 78, 81, 82, 84, 85, 88, 91, 94, 95, 99, 100, 101, 103, 107, 109, 111, 112, 115, 117, 119, 121, 125, 127, 129, 131, 134, 135, 139, 140, 142, 144, 146, 148, 152]