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A023771 Nialpdromes: digits in base 16 are in nonincreasing order. 1
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 32, 33, 34, 48, 49, 50, 51, 64, 65, 66, 67, 68, 80, 81, 82, 83, 84, 85, 96, 97, 98, 99, 100, 101, 102, 112, 113, 114, 115, 116, 117, 118, 119, 128, 129, 130, 131, 132, 133, 134, 135, 136, 144, 145 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Eric Weisstein's World of Mathematics, Digit.

Eric Weisstein's World of Mathematics, Nialpdrome.

MATHEMATICA

Select[Range[0, 500], Max[Differences[IntegerDigits[#, 16]]]<=0&] (* Vincenzo Librandi, Dec 27 2012 *)

Select[Range[0, 145], GreaterEqual@@IntegerDigits[#, 16]&] (* Ray Chandler, Jan 06 2014 *)

CROSSREFS

Sequence in context: A113221 A113219 A179978 * A132033 A194966 A133137

Adjacent sequences:  A023768 A023769 A023770 * A023772 A023773 A023774

KEYWORD

nonn,base,easy

AUTHOR

Olivier Gérard

STATUS

approved

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Last modified January 16 19:36 EST 2019. Contains 319206 sequences. (Running on oeis4.)