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.

A160044 Nonnegative integers x such that x^y+y^x is not prime for any integer y>1, y

Original entry on oeis.org

0, 1, 2, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 16, 17, 18, 19, 20, 22, 23, 25, 26, 27, 28, 29, 30, 31, 34, 35, 36, 37, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 55, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 70, 71, 72, 73, 74, 77, 78, 79, 80, 82, 83, 84, 85, 86
Offset: 1

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Author

M. F. Hasler, Jul 04 2009

Keywords

Comments

This lists the nonnegative integers not occurring in A162486, i.e. the complement of A162488.
See A094133 for more information, links and references.

Crossrefs

Programs

  • PARI
    for( i=0,999, for( j=2,i-1, is/*pseudo*/prime(i^j+j^i) && next(2)); print1(i", "))