1,2

Table of n, a(n) for n=1..6.

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

Sequence in context: A258617 A307061 A074359 * A232383 A003868 A304833

Adjacent sequences: A104059 A104060 A104061 * A104063 A104064 A104065

more,nonn

Pierre CAMI, Mar 02 2005

Definition clarified by Harvey P. Dale, Jul 01 2015

approved