Number of consecutive runs of 3 odd nonprimes congruent to 3 mod 4 below 10^n.

A093188

Number of consecutive runs of 3 odd nonprimes congruent to 3 mod 4 below 10^n.

Terms

    a(0) =0a(1) =0a(2) =5a(3) =49a(4) =356a(5) =2678a(6) =21085a(7) =166814a(8) =1345812a(9) =11080939a(10) =92699035a(11) =786630700a(12) =6757485506

External references