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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
MATHEMATICA
Select[2*Range[150], !PrimeQ[#+3]&] (* Harvey P. Dale, Oct 15 2012 *)
CROSSREFS
Cf. A086801.
Sequence in context: A361908 A160594 A315724 * A154373 A315725 A315726
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 September 3 05:18 EDT 2024. Contains 375649 sequences. (Running on oeis4.)