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.

A274133 Numbers representable as ror(x)+rol(x) in two or more ways, where ror(x)=A038572(x) is x rotated one binary place to the right, rol(x)=A006257(x) is x rotated one binary place to the left.

Table of values

n a(n)
1 2
2 9
3 14
4 15
5 20
6 27
7 32
8 37
9 42
10 47
11 52
12 57
13 62
14 129
15 134
16 139
17 144
18 149
19 154
20 159
21 164
22 169
23 174
24 179
25 184
26 189
27 194
28 195
29 199
30 200
31 204
32 205
33 209
34 210
35 214
36 215
37 219
38 220
39 224
40 225
41 229
42 230
43 234
44 235
45 239
46 240
47 244
48 245
49 249
50 250
51 254
52 255
53 260
54 265
55 270
56 275

List of values

[2, 9, 14, 15, 20, 27, 32, 37, 42, 47, 52, 57, 62, 129, 134, 139, 144, 149, 154, 159, 164, 169, 174, 179, 184, 189, 194, 195, 199, 200, 204, 205, 209, 210, 214, 215, 219, 220, 224, 225, 229, 230, 234, 235, 239, 240, 244, 245, 249, 250, 254, 255, 260, 265, 270, 275]

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

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