A050732 Numbers of form 2^k (for values of k see A050723) containing no pair of consecutive equal digits (probably finite).

1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 131072, 1048576, 2097152, 4194304, 268435456, 536870912, 1073741824, 2147483648, 4294967296, 17179869184, 34359738368, 68719476736, 137438953472

Offset: 1

Author

Patrick De Geest, Sep 15 1999

Keywords

• nonn
• base

Examples

			2^18 = 262144 is missing, for example.
		

Links

• Index to divisibility sequences

Crossrefs

Cf. A043096, A050723.

Programs

Mathematica

Select[2^Range[0,40],FreeQ[Differences[IntegerDigits[#]],0] &] (* Jayanta Basu, May 31 2013 *)