Numbers k such that k*(k+2) gives the concatenation of two numbers m and m-1.

A116279

Numbers k such that k*(k+2) gives the concatenation of two numbers m and m-1.

Terms

    a(0) =36363636363a(1) =45454545454a(2) =54545454545a(3) =63636363636a(4) =72727272727a(5) =81818181818a(6) =90909090909

External references