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A043091
Every string of 2 consecutive base 5 digits contains exactly 2 distinct numbers.
11
0, 1, 2, 3, 4, 5, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 19, 20, 21, 22, 23, 26, 27, 28, 29, 35, 36, 38, 39, 40, 41, 42, 44, 45, 46, 47, 48, 51, 52, 53, 54, 55, 57, 58, 59, 65, 66, 67, 69, 70, 71, 72, 73, 76, 77, 78, 79, 80, 82, 83, 84, 85, 86
OFFSET
0,3
FORMULA
A031943 UNION {0}. [From R. J. Mathar, Oct 20 2008]
MATHEMATICA
Select[Range[0, 100], FreeQ[Differences[IntegerDigits[#, 5]], 0]&] (* Harvey P. Dale, Apr 04 2015 *)
CROSSREFS
Sequence in context: A254278 A204878 A037918 * A031943 A023800 A320340
KEYWORD
nonn,base
STATUS
approved