A112230 - OEIS

%I #8 Jul 23 2012 12:18:00

%S 13,13,89,83,449,89,5711,1511,701,449,8117,479,27611,5711,1889,10079,

%T 241739,701,145349,4139,14489,8117,28151,7079,25349,27611,29537,5711,

%U 85607,1889,212411,18719,13331,241739,19949,2699,220667,145349,12401

%N Sequence of Chen primes of the form (x*n+1)*(y*n+1)-2 in the order generated by A112229.

%F a(n) = (A112229(n,1)*n+1)*(A112229(n,2)*n+1)-2.

%e For n=3 2*3+1=7 prime, 4*3+1=13 prime, 7*13-2=89 a Chen prime

%Y Cf. A112229.

%K nonn

%O 1,1

%A _Pierre CAMI_, Aug 29 2005