The n-digit prime with the largest number of 6's, the largest of these if there is more than 1. 0 if no such prime exists.

A178004

The n-digit prime with the largest number of 6's, the largest of these if there is more than 1. 0 if no such prime exists.

Terms

    a(0) =0a(1) =67a(2) =661a(3) =6661a(4) =96667a(5) =666667a(6) =9666661a(7) =66666667a(8) =666666667a(9) =6666666661a(10) =66666666667a(11) =669666666661

External references