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.

A243932 Positive integers with the same number of twin divisors as non-twin divisors.

Table of values

n a(n)
1 6
2 8
3 21
4 27
5 33
6 35
7 39
8 40
9 45
10 51
11 57
12 69
13 72
14 75
15 87
16 93
17 96
18 105
19 111
20 123
21 129
22 141
23 143
24 159
25 168
26 177
27 183
28 189
29 201
30 213
31 219
32 237
33 249
34 252
35 264
36 267
37 291
38 297
39 303
40 309
41 312
42 321
43 323
44 327
45 339
46 381
47 393
48 399
49 411
50 417
51 420
52 429
53 447
54 453
55 471
56 483
57 489
58 501

List of values

[6, 8, 21, 27, 33, 35, 39, 40, 45, 51, 57, 69, 72, 75, 87, 93, 96, 105, 111, 123, 129, 141, 143, 159, 168, 177, 183, 189, 201, 213, 219, 237, 249, 252, 264, 267, 291, 297, 303, 309, 312, 321, 323, 327, 339, 381, 393, 399, 411, 417, 420, 429, 447, 453, 471, 483, 489, 501]

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

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