OFFSET
1,2
EXAMPLE
for i=1 to 20*10^1 (200) only one prime p(54)=251
251,257,263,269 consecutive primes in arithmetic progression 0,6,12,18
for i=1 to 20*10^2 (2000) 12 primes in arithmetic progression 0,6,12,18
for i=1 to 20*10^3 (20000) 64 primes in arithmetic progression 0,6,12,18
CROSSREFS
KEYWORD
more,nonn
AUTHOR
Pierre CAMI, Mar 02 2005
EXTENSIONS
Definition clarified by Harvey P. Dale, Jul 01 2015
STATUS
approved