Numbers k such that k concatenated with k-5 gives the product of two numbers which differ by 5.
A116124
Numbers k such that k concatenated with k-5 gives the product of two numbers which differ by 5.
Terms
- a(0) =61a(1) =65479a(2) =84289a(3) =106609a(4) =225649a(5) =275599a(6) =453589a(7) =1869505a(8) =2272555a(9) =2738291a(10) =3221951a(11) =1667833021a(12) =2475062749a(13) =2525062249a(14) =3500010739a(15) =9032526511a(16) =9225507211
External references
- oeis: A116124