Numbers k such that k concatenated with k+7 gives the product of two numbers which differ by 5.
A116207
Numbers k such that k concatenated with k+7 gives the product of two numbers which differ by 5.
Terms
- a(0) =493a(1) =607a(2) =629a(3) =757a(4) =17927a(5) =33247a(6) =93869a(7) =19467217a(8) =31223879a(9) =72757727
External references
- oeis: A116207