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A121762 Single (or isolated or non-twin) primes of form 6n-1. +0
2
23, 47, 53, 83, 89, 113, 131, 167, 173, 233, 251, 257, 263, 293, 317, 353, 359, 383, 389, 401, 443, 449, 467, 479, 491, 503, 509, 557, 563, 587, 593, 647, 653, 677, 683, 701, 719, 743, 761, 773, 797, 839, 863, 887, 911, 929, 941, 947, 953, 971, 977, 983, 1013 (list; graph; listen)
OFFSET

1,1

MATHEMATICA

Select[Table[6n - 1, {n, 200}], PrimeQ[ # ] && ! PrimeQ[ # + 2] &] (*Chandler*)

CROSSREFS

Cf. A007510, A121763.

Cf. A007528.

Sequence in context: A130604 A103629 A109996 this_sequence A052159 A097361 A073025

Adjacent sequences: A121759 A121760 A121761 this_sequence A121763 A121764 A121765

KEYWORD

nonn

AUTHOR

Lekraj Beedassy (blekraj(AT)yahoo.com), Aug 20 2006

EXTENSIONS

Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Aug 22 2006

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Last modified September 6 09:40 EDT 2008. Contains 143480 sequences.


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