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.

A062956 a(n) = h(n^2) - h(n), where h(n) is the half-totient function (A023022).

Table of values

n a(n)
3 2
4 3
5 8
6 5
7 18
8 14
9 24
10 18
11 50
12 22
13 72
14 39
15 56
16 60
17 128
18 51
19 162
20 76
21 120
22 105
23 242
24 92
25 240
26 150
27 234
28 162
29 392
30 116
31 450
32 248
33 320
34 264
35 408
36 210
37 648
38 333
39 456
40 312
41 800
42 246
43 882
44 430
45 528
46 495
47 1058
48 376
49 1008
50 490
51 800
52 612
53 1352
54 477
55 1080
56 660
57 1008

List of values

[2, 3, 8, 5, 18, 14, 24, 18, 50, 22, 72, 39, 56, 60, 128, 51, 162, 76, 120, 105, 242, 92, 240, 150, 234, 162, 392, 116, 450, 248, 320, 264, 408, 210, 648, 333, 456, 312, 800, 246, 882, 430, 528, 495, 1058, 376, 1008, 490, 800, 612, 1352, 477, 1080, 660, 1008]