a(1) = 1, a(n) is the number obtained by replacing each digit of a(n-1) with five times its value.

A061583

a(1) = 1, a(n) is the number obtained by replacing each digit of a(n-1) with five times its value.

Terms

    a(0) =1a(1) =5a(2) =25a(3) =1025a(4) =501025a(5) =250501025

External references