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.

A076485 Solutions to gcd(sigma(x), phi(x)) > gcd(sigma(core(x)), phi(core(x))), i.e., when A009223(x) > A066086(x) or if A066087(x) > 0.

Table of values

n a(n)
1 12
2 18
3 24
4 44
5 48
6 49
7 54
8 56
9 72
10 88
11 92
12 96
13 99
14 108
15 112
16 116
17 125
18 132
19 135
20 140
21 147
22 152
23 162
24 168
25 169
26 172
27 176
28 184
29 188
30 192
31 196
32 198
33 200
34 207
35 216
36 224
37 236
38 248
39 250
40 264
41 270
42 276
43 280
44 284
45 288
46 297
47 308
48 328
49 332
50 336
51 344
52 348
53 352
54 361

List of values

[12, 18, 24, 44, 48, 49, 54, 56, 72, 88, 92, 96, 99, 108, 112, 116, 125, 132, 135, 140, 147, 152, 162, 168, 169, 172, 176, 184, 188, 192, 196, 198, 200, 207, 216, 224, 236, 248, 250, 264, 270, 276, 280, 284, 288, 297, 308, 328, 332, 336, 344, 348, 352, 361]

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

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