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.

A249760 Numbers k such that k+1 and sigma(k) are both primes.

Table of values

n	a(n)
1	2
2	4
3	16
4	65536

List of values

[2, 4, 16, 65536]

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

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