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.

A147816 Concatenation of n digits 1 and 2(n-1) digits 0.

Table of values

n a(n)
1 1
2 1100
3 1110000
4 1111000000
5 1111100000000
6 1111110000000000
7 1111111000000000000
8 1111111100000000000000
9 1111111110000000000000000
10 1111111111000000000000000000
11 1111111111100000000000000000000
12 1111111111110000000000000000000000

List of values

[1, 1100, 1110000, 1111000000, 1111100000000, 1111110000000000, 1111111000000000000, 1111111100000000000000, 1111111110000000000000000, 1111111111000000000000000000, 1111111111100000000000000000000, 1111111111110000000000000000000000]

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

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