Indices of consecutive prime-powers (exclusive) differing by 1. Positions of 1's in A057820.

A375734

Indices of consecutive prime-powers (exclusive) differing by 1. Positions of 1's in A057820.

Terms

    a(0) =1a(1) =2a(2) =3a(3) =5a(4) =6a(5) =10a(6) =17a(7) =43a(8) =70a(9) =1077a(10) =6635a(11) =12369a(12) =43578a(13) =105102700

External references