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.

A349931 Numbers that have an equal number of factorizations of even and odd length in both unordered and ordered manners.

Table of values

n a(n)
1 4
2 9
3 12
4 18
5 20
6 25
7 28
8 44
9 45
10 48
11 49
12 50
13 52
14 63
15 68
16 72
17 75
18 76
19 80
20 92
21 98
22 99
23 108
24 112
25 116
26 117
27 121
28 124
29 147
30 148
31 153
32 162
33 164
34 169
35 171
36 172
37 175
38 176
39 180
40 188
41 192
42 200
43 207
44 208
45 212
46 236
47 240
48 242
49 244
50 245
51 252
52 261
53 268
54 272
55 275
56 279
57 284
58 289
59 292
60 300

List of values

[4, 9, 12, 18, 20, 25, 28, 44, 45, 48, 49, 50, 52, 63, 68, 72, 75, 76, 80, 92, 98, 99, 108, 112, 116, 117, 121, 124, 147, 148, 153, 162, 164, 169, 171, 172, 175, 176, 180, 188, 192, 200, 207, 208, 212, 236, 240, 242, 244, 245, 252, 261, 268, 272, 275, 279, 284, 289, 292, 300]

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

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