Number of consecutive runs of just 1 odd nonprime congruent to 3 mod 4 below 10^n.

A093184

Number of consecutive runs of just 1 odd nonprime congruent to 3 mod 4 below 10^n.

Terms

    a(0) =0a(1) =4a(2) =76a(3) =1120a(4) =13428a(5) =151342a(6) =1642285a(7) =17405478a(8) =181923798a(9) =1883330510a(10) =19364376037a(11) =198115964781

External references