a(n) is the square of one plus the number consisting of n 3's.

A102807

a(n) is the square of one plus the number consisting of n 3's.

Terms

    a(0) =1a(1) =16a(2) =1156a(3) =111556a(4) =11115556a(5) =1111155556a(6) =111111555556

External references