A023761 Nialpdromes: digits in base 5 are in nonincreasing order.

0, 1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 16, 17, 18, 20, 21, 22, 23, 24, 25, 30, 31, 50, 55, 56, 60, 61, 62, 75, 80, 81, 85, 86, 87, 90, 91, 92, 93, 100, 105, 106, 110, 111, 112, 115, 116, 117, 118, 120, 121, 122, 123, 124, 125, 150, 155, 156, 250, 275, 280, 281

Offset

1,3

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..1001 (adapted to the new offset from Bruno Berselli)

Mathematica

Select[Range[0, 4000], Max[Differences[IntegerDigits[#, 5]]]<=0&] (* Vincenzo Librandi, Dec 26 2012 *)
Select[Range[0, 281], GreaterEqual@@IntegerDigits[#, 5]&] (* Ray Chandler, Jan 06 2014 *)

Crossrefs

Sequence in context: A158520 A032868 A032341 * A032902 A018578 A056910

Adjacent sequences: A023758 A023759 A023760 * A023762 A023763 A023764

Keyword

nonn,base,easy

Author

Olivier Gérard

Status

approved