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.

A241882 Numbers with d digits that are divisible by 2^d and have at most 2 distinct digits: exactly one even digit and at most one odd digit.

Table of values

n a(n)
1 2
2 4
3 6
4 8
5 12
6 16
7 32
8 36
9 44
10 52
11 56
12 72
13 76
14 88
15 92
16 96
17 112
18 144
19 232
20 272
21 336
22 344
23 544
24 552
25 616
26 656
27 696
28 744
29 776
30 888
31 944
32 992
33 1616
34 1888
35 2112
36 2272
37 2992
38 3232
39 3344
40 3888
41 4144
42 4544
43 4944
44 5552
45 5888
46 6336
47 6656
48 7744
49 7776
50 7888
51 9696
52 9888

List of values

[2, 4, 6, 8, 12, 16, 32, 36, 44, 52, 56, 72, 76, 88, 92, 96, 112, 144, 232, 272, 336, 344, 544, 552, 616, 656, 696, 744, 776, 888, 944, 992, 1616, 1888, 2112, 2272, 2992, 3232, 3344, 3888, 4144, 4544, 4944, 5552, 5888, 6336, 6656, 7744, 7776, 7888, 9696, 9888]