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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.

A072926 a(n) = Sum_{k=1..n} A051699(k).

Table of values

n a(n)
1 1
2 1
3 1
4 2
5 2
6 3
7 3
8 4
9 6
10 7
11 7
12 8
13 8
14 9
15 11
16 12
17 12
18 13
19 13
20 14
21 16
22 17
23 17
24 18
25 20
26 23
27 25
28 26
29 26
30 27
31 27
32 28
33 30
34 33
35 35
36 36
37 36
38 37
39 39
40 40
41 40
42 41
43 41
44 42
45 44
46 45
47 45
48 46
49 48
50 51
51 53
52 54
53 54
54 55
55 57
56 60
57 62
58 63
59 63
60 64
61 64
62 65
63 67
64 70
65 72
66 73
67 73
68 74
69 76
70 77
71 77
72 78
73 78
74 79

List of values

[1, 1, 1, 2, 2, 3, 3, 4, 6, 7, 7, 8, 8, 9, 11, 12, 12, 13, 13, 14, 16, 17, 17, 18, 20, 23, 25, 26, 26, 27, 27, 28, 30, 33, 35, 36, 36, 37, 39, 40, 40, 41, 41, 42, 44, 45, 45, 46, 48, 51, 53, 54, 54, 55, 57, 60, 62, 63, 63, 64, 64, 65, 67, 70, 72, 73, 73, 74, 76, 77, 77, 78, 78, 79]

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