n times n+4 gives the concatenation of two numbers m and m-9.

A116227

n times n+4 gives the concatenation of two numbers m and m-9.

Terms

    a(0) =44a(1) =53a(2) =949949a(3) =979652a(4) =7771781677a(5) =7900890078a(6) =9920892098a(7) =9949999499

External references