If any power of 2 ends with k 2's and 9's, they must be the first k terms of this sequence in reverse order.
A023400
If any power of 2 ends with k 2's and 9's, they must be the first k terms of this sequence in reverse order.
Terms
- a(0) =2a(1) =9a(2) =9a(3) =2a(4) =9a(5) =2a(6) =2a(7) =2a(8) =2a(9) =2a(10) =2a(11) =9a(12) =9a(13) =2a(14) =9a(15) =9a(16) =9a(17) =9a(18) =2a(19) =2a(20) =9a(21) =2a(22) =9a(23) =2a(24) =9a(25) =2a(26) =2a(27) =9a(28) =2a(29) =2
External references
- oeis: A023400