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A155854 Numbers n such that 13*n + 3 is not prime. 2
1, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 17, 18, 19, 21, 22, 23, 24, 25, 26, 27, 29, 30, 31, 33, 34, 35, 36, 37, 38, 39, 41, 42, 43, 44, 45, 47, 48, 49, 51, 52, 53, 54, 55, 56, 57, 59, 60, 61, 63, 64, 65, 66, 67, 69, 70, 71, 72, 73, 74, 75, 77, 78, 79, 80, 81, 83, 84, 85, 86, 87 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

MATHEMATICA

Select[Range[100], !PrimeQ[13 # + 3] &]

PROG

(MAGMA) [n: n in [0..90] | not IsPrime(13*n + 3)]; // Vincenzo Librandi, Oct 15 2012

CROSSREFS

Cf. A100202, A155853.

Sequence in context: A194276 A184336 A183300 * A047252 A039235 A247782

Adjacent sequences:  A155851 A155852 A155853 * A155855 A155856 A155857

KEYWORD

nonn,easy

AUTHOR

Vincenzo Librandi, Jan 29 2009

EXTENSIONS

Data corrected by Harvey P. Dale, Sep 11 2011

STATUS

approved

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Last modified September 20 10:51 EDT 2021. Contains 347584 sequences. (Running on oeis4.)