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.

A225238 Numbers n such that n occurs within its base 2 representation regarded as a fixed necklace, but n is not a substring of the base 2 representation regarded as a string.

Table of values

n a(n)
1 1111
2 110110
3 111011
4 1011110
5 1101111
6 10011001
7 10100110
8 11001010
9 11010011
10 110011111
11 111010011
12 111011101
13 1001101111
14 11001101111
15 11010010100
16 100101110100
17 101000111011
18 101011001010
19 101111110111
20 110011001100
21 110111001101
22 111011110011

List of values

[1111, 110110, 111011, 1011110, 1101111, 10011001, 10100110, 11001010, 11010011, 110011111, 111010011, 111011101, 1001101111, 11001101111, 11010010100, 100101110100, 101000111011, 101011001010, 101111110111, 110011001100, 110111001101, 111011110011]

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

Content is available under The OEIS End-User License Agreement.