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.

A023631 a(n) = c([ (n+1)/2 ]) + n, with a(1) = 1 and a(2) = 4, c = complement to a.

Table of values

n a(n)
1 1
2 4
3 6
4 7
5 10
6 11
7 15
8 16
9 18
10 19
11 23
12 24
13 26
14 27
15 29
16 30
17 34
18 35
19 39
20 40
21 42
22 43
23 45
24 46
25 50
26 51
27 55
28 56
29 60
30 61
31 63
32 64
33 66
34 67
35 71
36 72
37 74
38 75
39 77
40 78
41 82
42 83
43 87
44 88
45 92
46 93
47 95
48 96
49 98
50 99
51 103
52 104
53 106
54 107
55 109
56 110
57 114
58 115
59 117
60 118
61 120
62 121
63 125

List of values

[1, 4, 6, 7, 10, 11, 15, 16, 18, 19, 23, 24, 26, 27, 29, 30, 34, 35, 39, 40, 42, 43, 45, 46, 50, 51, 55, 56, 60, 61, 63, 64, 66, 67, 71, 72, 74, 75, 77, 78, 82, 83, 87, 88, 92, 93, 95, 96, 98, 99, 103, 104, 106, 107, 109, 110, 114, 115, 117, 118, 120, 121, 125]

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

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