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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.

A176090 Numbers n such that 2(10^n-1)/3 * 10^ceiling(log_10(n+1)) + n is prime.

Table of values

n	a(n)
1	1
2	7
3	41
4	2429

List of values

[1, 7, 41, 2429]

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

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