OFFSET
1,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
EXAMPLE
Distribution of the terms in the following triangular array:
*;
*,*;
*,*,*;
*,*,*,*;
*,*,*,*,*;
*,*,*,*,*,*;
*,*,*,*,*,*,*;
*,3,*,*,*,*,*,*;
*,*,5,*,*,*,*,*,*;
*,*,*,*,*,*,*,*,*,*;
*,*,*,*,10,*,*,*,*,*,*;
*,*,*,*,*,13,*,*,*,*,*,*; etc.
where * marks the non-integer values of (2*h*k + k + h - 6)/12 with h >= k >= 1. - Vincenzo Librandi, Jan 15 2013
MATHEMATICA
Select[Range[0, 100], !PrimeQ[24 # + 13] &] (* Vincenzo Librandi, Oct 15 2012 *)
PROG
(Magma) [n: n in [0..100] |not IsPrime(24*n + 13)]; // Vincenzo Librandi, Oct 15 2012
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Jan 31 2009
STATUS
approved