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.

A140707 A positive integer n is included if n written in binary contains the same number of 0's as the number of distinct primes that divide n.

Table of values

n a(n)
1 1
2 2
3 5
4 10
5 11
6 12
7 13
8 21
9 22
10 23
11 26
12 27
13 28
14 29
15 39
16 42
17 45
18 46
19 47
20 51
21 54
22 57
23 58
24 59
25 61
26 78
27 87
28 90
29 91
30 93
31 94
32 102
33 105
34 114
35 115
36 117
37 118
38 120
39 122
40 124
41 125
42 159
43 174
44 175
45 182
46 183
47 186
48 187
49 189
50 191
51 207
52 210
53 215
54 219
55 220
56 221
57 223
58 230
59 234
60 235

List of values

[1, 2, 5, 10, 11, 12, 13, 21, 22, 23, 26, 27, 28, 29, 39, 42, 45, 46, 47, 51, 54, 57, 58, 59, 61, 78, 87, 90, 91, 93, 94, 102, 105, 114, 115, 117, 118, 120, 122, 124, 125, 159, 174, 175, 182, 183, 186, 187, 189, 191, 207, 210, 215, 219, 220, 221, 223, 230, 234, 235]

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

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