Numbers k such that k concatenated with k-5 gives the product of two numbers which differ by 1.

A116120

Numbers k such that k concatenated with k-5 gives the product of two numbers which differ by 1.

Terms

    a(0) =7a(1) =55a(2) =5255a(3) =6295a(4) =75511a(5) =92137a(6) =5551405a(7) =7943911

External references