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A023768
Nialpdromes: digits in base 13 are in nonincreasing order.
1
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 26, 27, 28, 39, 40, 41, 42, 52, 53, 54, 55, 56, 65, 66, 67, 68, 69, 70, 78, 79, 80, 81, 82, 83, 84, 91, 92, 93, 94, 95, 96, 97, 98, 104, 105, 106, 107, 108, 109, 110, 111, 112, 117, 118, 119, 120, 121, 122, 123
OFFSET
1,3
LINKS
MATHEMATICA
Select[Range[0, 1000], Max[Differences[IntegerDigits[#, 13]]]<=0&] (* Vincenzo Librandi, Dec 26 2012 *)
Select[Range[0, 123], GreaterEqual@@IntegerDigits[#, 13]&] (* Ray Chandler, Jan 06 2014 *)
CROSSREFS
Sequence in context: A072089 A072088 A376774 * A023795 A032949 A094275
KEYWORD
nonn,base,easy
STATUS
approved