login
This site is supported by donations to The OEIS Foundation.

 

Logo

Annual Appeal: Please make a donation (tax deductible in USA) to keep the OEIS running. Over 5000 articles have referenced us, often saying "we discovered this result with the help of the OEIS".

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A023760 Nialpdromes: digits in base 4 are in nonincreasing order. 3
0, 1, 2, 3, 4, 5, 8, 9, 10, 12, 13, 14, 15, 16, 20, 21, 32, 36, 37, 40, 41, 42, 48, 52, 53, 56, 57, 58, 60, 61, 62, 63, 64, 80, 84, 85, 128, 144, 148, 149, 160, 164, 165, 168, 169, 170, 192, 208, 212, 213, 224, 228, 229, 232, 233, 234, 240, 244, 245, 248 (list; graph; refs; listen; history; text; internal format)
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[#, 4]]]<=0&] (* Vincenzo Librandi, Dec 26 2012 *)

Select[Range[0, 250], GreaterEqual@@IntegerDigits[#, 4]&] (* Ray Chandler, Jan 06 2014 *)

CROSSREFS

Sequence in context: A023775 A032867 A031999 * A032901 A260113 A005792

Adjacent sequences:  A023757 A023758 A023759 * A023761 A023762 A023763

KEYWORD

nonn,base,easy

AUTHOR

Olivier Gérard

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified December 9 21:41 EST 2016. Contains 278987 sequences.