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

A061586

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

Terms

    a(0) =1a(1) =8a(2) =64a(3) =4832a(4) =32642416

External references