A032972 Numbers with the property that all pairs of consecutive base-9 digits differ by more than 1.

1, 2, 3, 4, 5, 6, 7, 8, 12, 13, 14, 15, 16, 17, 18, 22, 23, 24, 25, 26, 27, 28, 32, 33, 34, 35, 36, 37, 38, 42, 43, 44, 45, 46, 47, 48, 52, 53, 54, 55, 56, 57, 58, 62, 63, 64, 65, 66, 67, 68, 72, 73, 74, 75, 76, 77, 78, 108, 109, 113, 114, 115

Offset

1,2

Links

Table of n, a(n) for n=1..62.

Mathematica

Select[Range[120], Min[Abs[Differences[IntegerDigits[#, 9]]]]>1&] (* Harvey P. Dale, Nov 06 2012 *)

Crossrefs

Sequence in context: A080543 A285916 A119797 * A210585 A240082 A321334

Adjacent sequences: A032969 A032970 A032971 * A032973 A032974 A032975

Keyword

nonn,base

Author

Clark Kimberling

Status

approved