Smallest multiple of 2^n using only 1's and 2's.
A207778
Smallest multiple of 2^n using only 1's and 2's.
Terms
- a(0) =1a(1) =2a(2) =12a(3) =112a(4) =112a(5) =2112a(6) =2112a(7) =122112a(8) =122112a(9) =12122112a(10) =12122112a(11) =12122112a(12) =111212122112
External references
- oeis: A207778