The smallest positive integer that produces a product that contains the digit 2 when multiplied by 2 a total of n times.
A381087
The smallest positive integer that produces a product that contains the digit 2 when multiplied by 2 a total of n times.
Terms
- a(0) =2a(1) =1a(2) =6a(3) =31a(4) =64a(5) =64a(6) =331a(7) =331a(8) =814a(9) =1607a(10) =4107a(11) =5129a(12) =5129a(13) =5129a(14) =10283a(15) =12819a(16) =16163a(17) =16163a(18) =16163a(19) =40108a(20) =40108a(21) =40108a(22) =40108a(23) =40108a(24) =40108a(25) =80313a(26) =80313a(27) =80313a(28) =80313a(29) =100153
External references
- oeis: A381087