Numbers whose square is the concatenation of two numbers k and k-5.

A115444

Numbers whose square is the concatenation of two numbers k and k-5.

Terms

    a(0) =46a(1) =55a(2) =949951a(3) =979654a(4) =7771781679a(5) =7900890080a(6) =9920892100a(7) =9949999501

External references