If any power of 2 ends with k 4's and 5's, they must be the first k terms of this sequence in reverse order.
A023403
If any power of 2 ends with k 4's and 5's, they must be the first k terms of this sequence in reverse order.
Terms
- a(0) =4a(1) =4a(2) =5a(3) =4a(4) =4a(5) =4a(6) =4a(7) =5a(8) =4a(9) =5a(10) =4a(11) =5a(12) =5a(13) =5a(14) =5a(15) =4a(16) =4a(17) =5a(18) =4a(19) =5a(20) =4a(21) =5a(22) =5a(23) =4a(24) =5a(25) =5a(26) =4a(27) =5a(28) =4a(29) =5
External references
- oeis: A023403