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.

A309740 Numbers k such that 5*10^(2*k) + 5*10^k + 1 is prime.

Table of values

n a(n)
1 0
2 3
3 5
4 301
5 13817
6 15259

List of values

[0, 3, 5, 301, 13817, 15259]

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

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