A115049 - OEIS

A115049

Numbers n such that starting with n-th prime, seven groups of three consecutive primes have prime totals.

%I #5 Oct 19 2017 03:15:00

%S 4,390,393,1724351,2070298,2155328,3378096,5333892,5333895,8520677,

%T 11310117,11436145,13085496,17272880,25418046,28636345,33138545,

%U 36896575,37744498,38493207,45342669,46960863,59843398,63107018

%N Numbers n such that starting with n-th prime, seven groups of three consecutive primes have prime totals.

%C Or, seven chunks of three consecutive primes with prime total.

%e n = 4 is OK because totals of seven groups of three consecutive primes p(4)+p(5)+p(6),...,p(22)+p(23)+p(24) equal to 31,59,97,131,173,211,251, all prime.

%K nonn

%O 1,1

%A _Zak Seidov_, Feb 28 2006

%E Corrected and extended by _Don Reble_, Nov 22 2006