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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.

A110532 a(n) = floor(n/2) + floor(n/5).

Table of values

n a(n)
0 0
1 0
2 1
3 1
4 2
5 3
6 4
7 4
8 5
9 5
10 7
11 7
12 8
13 8
14 9
15 10
16 11
17 11
18 12
19 12
20 14
21 14
22 15
23 15
24 16
25 17
26 18
27 18
28 19
29 19
30 21
31 21
32 22
33 22
34 23
35 24
36 25
37 25
38 26
39 26
40 28
41 28
42 29
43 29
44 30
45 31
46 32
47 32
48 33
49 33
50 35
51 35
52 36
53 36
54 37
55 38
56 39
57 39
58 40
59 40
60 42
61 42
62 43
63 43
64 44
65 45
66 46
67 46
68 47
69 47
70 49
71 49
72 50
73 50

List of values

[0, 0, 1, 1, 2, 3, 4, 4, 5, 5, 7, 7, 8, 8, 9, 10, 11, 11, 12, 12, 14, 14, 15, 15, 16, 17, 18, 18, 19, 19, 21, 21, 22, 22, 23, 24, 25, 25, 26, 26, 28, 28, 29, 29, 30, 31, 32, 32, 33, 33, 35, 35, 36, 36, 37, 38, 39, 39, 40, 40, 42, 42, 43, 43, 44, 45, 46, 46, 47, 47, 49, 49, 50, 50]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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