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.

A061851 Digital representation of n contains only 1's and 0's, is palindromic and contains no singleton 1's or 0's.

Table of values

n a(n)
1 11
2 111
3 1111
4 11111
5 110011
6 111111
7 1100011
8 1111111
9 11000011
10 11100111
11 11111111
12 110000011
13 111000111
14 111111111
15 1100000011
16 1100110011
17 1110000111
18 1111001111
19 1111111111
20 11000000011
21 11001110011
22 11100000111
23 11110001111
24 11111111111
25 110000000011
26 110001100011

List of values

[11, 111, 1111, 11111, 110011, 111111, 1100011, 1111111, 11000011, 11100111, 11111111, 110000011, 111000111, 111111111, 1100000011, 1100110011, 1110000111, 1111001111, 1111111111, 11000000011, 11001110011, 11100000111, 11110001111, 11111111111, 110000000011, 110001100011]

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

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