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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.

A225058 a(4*n) = n-1. a(2*n+1) = a(4*n+2) = 2*n+1.

Table of values

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

List of values

[-1, 1, 1, 3, 0, 5, 3, 7, 1, 9, 5, 11, 2, 13, 7, 15, 3, 17, 9, 19, 4, 21, 11, 23, 5, 25, 13, 27, 6, 29, 15, 31, 7, 33, 17, 35, 8, 37, 19, 39, 9, 41, 21, 43, 10, 45, 23, 47, 11, 49, 25, 51, 12, 53, 27, 55, 13, 57, 29, 59, 14, 61, 31, 63, 15, 65, 33, 67, 16, 69]

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

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