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.

A068814 Primes with a 2 followed by (possibly zero) 1's.

Table of values

n a(n)
1 2
2 211
3 2111
4 2111111111111
5 2111111111111111111
6 211111111111111111111111
7 2111111111111111111111111111111111111111111111111111111111
8 211111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111

List of values

[2, 211, 2111, 2111111111111, 2111111111111111111, 211111111111111111111111, 2111111111111111111111111111111111111111111111111111111111, 211111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111]

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

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