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.

A263645 Primes that are neither of the form p + 2^k nor of the form p - 2^k with k > 0, and p prime.

Original entry on oeis.org

2, 52504261, 55414847, 79933129, 152485283, 166441831, 177702619, 197903207, 199013093, 220403959, 226794259, 230701763, 245215801, 266642731, 304921637, 321979283, 335035097, 355404353, 359018299, 369810769, 388048561, 412590797, 445661719, 506400173, 540426473
Offset: 1

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Author

Arkadiusz Wesolowski, Oct 22 2015

Keywords

Comments

Primes p such that for all k > 0 the numbers p + 2^k and p - 2^k are nonprimes.
Except for 2, this sequence is the intersection of A065381 and A137715.

Crossrefs