OFFSET
1,1
LINKS
Odimar Fabeny, Table of n, a(n) for n = 1..10000
MATHEMATICA
Select[18Range[125] + 13, Not[PrimeQ[#]] &] (* Alonso del Arte, Sep 24 2014 *)
Select[Range[13, 1700, 18], CompositeQ] (* Harvey P. Dale, Aug 21 2024 *)
PROG
(PARI) lista(nn) = {forcomposite(n=1, nn, if ((n % 2) && ((n % 9) == 4), print1(n, ", ")); ); } \\ Michel Marcus, Sep 22 2014
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Odimar Fabeny, Sep 22 2014
STATUS
approved