Automorphic numbers ending in digit 5: a(n) = 5^(2^n) mod 10^n.

A007185

Automorphic numbers ending in digit 5: a(n) = 5^(2^n) mod 10^n.

Terms

    a(0) =5a(1) =25a(2) =625a(3) =625a(4) =90625a(5) =890625a(6) =2890625a(7) =12890625a(8) =212890625a(9) =8212890625a(10) =18212890625a(11) =918212890625

External references