Numbers k such that k concatenated with k+3 gives the product of two numbers which differ by 5.
A116179
Numbers k such that k concatenated with k+3 gives the product of two numbers which differ by 5.
Terms
- a(0) =1a(1) =3a(2) =81a(3) =1353a(4) =3997a(5) =7723a(6) =23761a(7) =26271a(8) =76771a(9) =1415683a(10) =3890571a(11) =8495497a(12) =1066870443a(13) =1239366513a(14) =4198438981a(15) =4534273891a(16) =6502317141a(17) =6918679731
External references
- oeis: A116179