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.

A246600 Number of divisors d of n with property that the binary representation of d can be obtained from the binary representation of n by changing any number of 1's to 0's.

Table of values

n a(n)
1 1
2 1
3 2
4 1
5 2
6 2
7 2
8 1
9 2
10 2
11 2
12 2
13 2
14 2
15 4
16 1
17 2
18 2
19 2
20 2
21 2
22 2
23 2
24 2
25 2
26 2
27 4
28 2
29 2
30 4
31 2
32 1
33 2
34 2
35 2
36 2
37 2
38 2
39 3
40 2
41 2
42 2
43 2
44 2
45 4
46 2
47 2
48 2
49 2
50 2
51 4
52 2
53 2
54 4
55 3
56 2
57 2
58 2
59 2
60 4
61 2
62 2
63 6
64 1
65 2
66 2
67 2
68 2
69 2
70 2
71 2
72 2
73 2
74 2
75 3
76 2
77 2
78 3
79 2
80 2
81 2
82 2
83 2
84 2
85 4
86 2
87 3
88 2
89 2
90 4
91 2

List of values

[1, 1, 2, 1, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 4, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 4, 2, 2, 4, 2, 1, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 4, 2, 2, 2, 2, 2, 4, 2, 2, 4, 3, 2, 2, 2, 2, 4, 2, 2, 6, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 3, 2, 2, 2, 2, 2, 2, 4, 2, 3, 2, 2, 4, 2]