Choose two different numbers x and y from 2 to 9. a(n) is the number that consists solely of the digits x or y and is the smallest number divisible by both of them.
A380568
Choose two different numbers x and y from 2 to 9. a(n) is the number that consists solely of the digits x or y and is the smallest number divisible by both of them.
Terms
- a(0) =24a(1) =36a(2) =288a(3) =448a(4) =2232a(5) =2772a(6) =3444a(7) =3555a(8) =3888a(9) =4464a(10) =5775a(11) =6696a(12) =8688a(13) =33399a(14) =37737a(15) =44744a(16) =76776a(17) =7888888a(18) =2222222292a(19) =4444444944a(20) =5555555595a(21) =8888889888a(22) =77777779779
External references
- oeis: A380568