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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.

A088610 Starting with n = 1, a(n) is the smallest squarefree number not included earlier if n is odd, else n is the smallest nonsquarefree number.

Table of values

n a(n)
1 1
2 4
3 2
4 8
5 3
6 9
7 5
8 12
9 6
10 16
11 7
12 18
13 10
14 20
15 11
16 24
17 13
18 25
19 14
20 27
21 15
22 28
23 17
24 32
25 19
26 36
27 21
28 40
29 22
30 44
31 23
32 45
33 26
34 48
35 29
36 49
37 30
38 50
39 31
40 52
41 33
42 54
43 34
44 56
45 35
46 60
47 37
48 63
49 38
50 64
51 39
52 68
53 41
54 72
55 42
56 75
57 43
58 76
59 46
60 80
61 47
62 81
63 51
64 84
65 53
66 88
67 55
68 90
69 57
70 92
71 58
72 96

List of values

[1, 4, 2, 8, 3, 9, 5, 12, 6, 16, 7, 18, 10, 20, 11, 24, 13, 25, 14, 27, 15, 28, 17, 32, 19, 36, 21, 40, 22, 44, 23, 45, 26, 48, 29, 49, 30, 50, 31, 52, 33, 54, 34, 56, 35, 60, 37, 63, 38, 64, 39, 68, 41, 72, 42, 75, 43, 76, 46, 80, 47, 81, 51, 84, 53, 88, 55, 90, 57, 92, 58, 96]

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

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