OFFSET
1,1
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..1000
EXAMPLE
6*41+5=251, 6*41+11=257, 6*41+17=263, 6*41+23=269; 251,257,263,269 are consecutive primes.
MATHEMATICA
Select[(#-5)/6&/@Transpose[Select[Partition[Prime[Range[11500]], 4, 1], Union[Differences[#]]=={6}&]][[1]], IntegerQ] (* Harvey P. Dale, Nov 18 2013 *)
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Pierre CAMI, Dec 09 2003
STATUS
approved