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.

A173521 a(n) is the concatenation of n 1's, 0, n 1's and 0.

Table of values

n a(n)
0 0
1 1010
2 110110
3 11101110
4 1111011110
5 111110111110
6 11111101111110
7 1111111011111110
8 111111110111111110
9 11111111101111111110
10 1111111111011111111110
11 111111111110111111111110

List of values

[0, 1010, 110110, 11101110, 1111011110, 111110111110, 11111101111110, 1111111011111110, 111111110111111110, 11111111101111111110, 1111111111011111111110, 111111111110111111111110]

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

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