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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A214428 Carmichael numbers n such that A002322(n) = 2^k * p, where k is an integer and p is a prime.

Original entry on oeis.org

561, 1105, 2465, 278545, 3224065, 11119105, 2479305985, 123155771490305
Offset: 1

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Author

T. D. Noe, Jul 19 2012

Keywords

Comments

Wright (2012) proves that given the 5 known Fermat primes (A019434), these are the only numbers possible.

Crossrefs

Cf. A002997 (Carmichael numbers), A002322, A019434, A293291.
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