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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.

A286982 Smallest nonnegative k such that (1 + k)^(2^n) + k is not prime and all (1 + k)^(2^j) + k, for 0 <= j < n, are primes.

Table of values

n a(n)
1 6
2 3
3 5
4 2
5 1
6 54131988

List of values

[6, 3, 5, 2, 1, 54131988]

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

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