(10^n+44)/9 for n>0.

A173737

(10^n+44)/9 for n>0.

Terms

    a(0) =6a(1) =16a(2) =116a(3) =1116a(4) =11116a(5) =111116a(6) =1111116a(7) =11111116a(8) =111111116a(9) =1111111116a(10) =11111111116a(11) =111111111116

External references