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.

A378987 Odd bisection of A083254, where A083254(n) = 2*phi(n)-n.

Table of values

n a(n)
1 1
2 1
3 3
4 5
5 3
6 9
7 11
8 1
9 15
10 17
11 3
12 21
13 15
14 9
15 27
16 29
17 7
18 13
19 35
20 9
21 39
22 41
23 3
24 45
25 35
26 13
27 51
28 25
29 15
30 57
31 59
32 9
33 31
34 65
35 19
36 69
37 71
38 5
39 43
40 77
41 27
42 81
43 43
44 25
45 87
46 53
47 27
48 49
49 95
50 21
51 99
52 101
53 -9
54 105
55 107
56 33
57 111
58 61
59 27
60 73
61 99
62 37
63 75
64 125
65 39
66 129
67 83
68 9
69 135
70 137
71 43
72 97
73 79
74 21
75 147
76 149
77 39
78 85
79 155
80 49
81 103
82 161
83 -5
84 165

List of values

[1, 1, 3, 5, 3, 9, 11, 1, 15, 17, 3, 21, 15, 9, 27, 29, 7, 13, 35, 9, 39, 41, 3, 45, 35, 13, 51, 25, 15, 57, 59, 9, 31, 65, 19, 69, 71, 5, 43, 77, 27, 81, 43, 25, 87, 53, 27, 49, 95, 21, 99, 101, -9, 105, 107, 33, 111, 61, 27, 73, 99, 37, 75, 125, 39, 129, 83, 9, 135, 137, 43, 97, 79, 21, 147, 149, 39, 85, 155, 49, 103, 161, -5, 165]