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.

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A249394 Numbers k such that the k-th ménage number is prime.

Original entry on oeis.org

4, 5, 13, 53, 8645
Offset: 1

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Author

Adam P. Goucher, Oct 30 2014

Keywords

Comments

This sequence is heuristically conjectured to grow doubly-exponentially.
a(6) > 100000. - Hans Havermann, Jan 19 2019

Examples

			The only known ménage primes are M(4) = 2, M(5) = 13, M(13) = 775596313, M(53) = 567525075138663383127158192994765939404930668817780601409606090331861, and M(8645).

Links

Crossrefs

By definition, the inverse image of A000040 under the function A000179.
The ménage primes themselves are given in A249510.

Programs

Extensions

Example edited by Hans Havermann, Jan 19 2019
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