A023810 - OEIS

A023810

Xenodromes: all digits in base 16 are different.

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 69, 70, 71, 72

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,3

COMMENTS

Last term is a(53319412081141) = 18364758544493064720 = 'fedcba9876543210'. - Charles R Greathouse IV, Jun 16 2012

LINKS

Table of n, a(n) for n=1..69.

MATHEMATICA

Select[Range[0, 80], Max[DigitCount[#, 16]]<2&] (* Harvey P. Dale, Aug 11 2021 *)

CROSSREFS

Sequence in context: A194966 A133137 A160543 * A102800 A072676 A235986

Adjacent sequences: A023807 A023808 A023809 * A023811 A023812 A023813

KEYWORD

nonn,base,fini,easy

AUTHOR

Olivier Gérard

STATUS

approved