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.

A053661 For n > 1: if n is present, 2n is not.

Table of values

n a(n)
1 1
2 2
3 3
4 5
5 7
6 8
7 9
8 11
9 12
10 13
11 15
12 17
13 19
14 20
15 21
16 23
17 25
18 27
19 28
20 29
21 31
22 32
23 33
24 35
25 36
26 37
27 39
28 41
29 43
30 44
31 45
32 47
33 48
34 49
35 51
36 52
37 53
38 55
39 57
40 59
41 60
42 61
43 63
44 65
45 67
46 68
47 69
48 71
49 73
50 75
51 76
52 77
53 79
54 80
55 81
56 83
57 84
58 85
59 87
60 89
61 91
62 92
63 93
64 95
65 97
66 99
67 100
68 101
69 103
70 105

List of values

[1, 2, 3, 5, 7, 8, 9, 11, 12, 13, 15, 17, 19, 20, 21, 23, 25, 27, 28, 29, 31, 32, 33, 35, 36, 37, 39, 41, 43, 44, 45, 47, 48, 49, 51, 52, 53, 55, 57, 59, 60, 61, 63, 65, 67, 68, 69, 71, 73, 75, 76, 77, 79, 80, 81, 83, 84, 85, 87, 89, 91, 92, 93, 95, 97, 99, 100, 101, 103, 105]

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

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