Numbers k such that k*(k+4) gives the concatenation of two numbers m and m-2.

A116275

Numbers k such that k*(k+4) gives the concatenation of two numbers m and m-2.

Terms

    a(0) =8872a(1) =9009a(2) =83352840a(3) =99000099a(4) =329767122286a(5) =670232877711a(6) =738226276371a(7) =933006600339a(8) =999000000999

External references