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
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Jan 29 2009
EXTENSIONS
Data corrected by Harvey P. Dale, Sep 11 2011
STATUS
approved