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A146538 Even numbers n such that n+3 is not a prime. 1
6, 12, 18, 22, 24, 30, 32, 36, 42, 46, 48, 52, 54, 60, 62, 66, 72, 74, 78, 82, 84, 88, 90, 92, 96, 102, 108, 112, 114, 116, 118, 120, 122, 126, 130, 132, 138, 140, 142, 144, 150, 152, 156, 158, 162, 166, 168, 172, 174, 180, 182, 184, 186, 192, 198, 200, 202, 204, 206 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..59.

MATHEMATICA

Select[2*Range[150], !PrimeQ[#+3]&] (* Harvey P. Dale, Oct 15 2012 *)

CROSSREFS

Cf. A086801.

Sequence in context: A315723 A160594 A315724 * A154373 A315725 A315726

Adjacent sequences:  A146535 A146536 A146537 * A146539 A146540 A146541

KEYWORD

easy,nonn

AUTHOR

Giovanni Teofilatto, Oct 31 2008

EXTENSIONS

54 and 66 inserted, 7274 split, 78 inserted, 176 removed by R. J. Mathar, Dec 04 2008

STATUS

approved

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Last modified December 12 07:31 EST 2019. Contains 329948 sequences. (Running on oeis4.)