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A023749 Plaindromes: numbers whose digits in base 7 are in nondecreasing order. 2
0, 1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 16, 17, 18, 19, 20, 24, 25, 26, 27, 32, 33, 34, 40, 41, 48, 57, 58, 59, 60, 61, 62, 65, 66, 67, 68, 69, 73, 74, 75, 76, 81, 82, 83, 89, 90, 97, 114, 115, 116, 117, 118, 122, 123, 124, 125, 130, 131, 132, 138, 139, 146, 171 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..4000

MATHEMATICA

Select[Range[0, 171], LessEqual@@IntegerDigits[#, 7]&] (* Ray Chandler, Jan 06 2014 *)

CROSSREFS

Sequence in context: A032895 A032854 A031992 * A022556 A250482 A172233

Adjacent sequences:  A023746 A023747 A023748 * A023750 A023751 A023752

KEYWORD

nonn,base,easy

AUTHOR

Olivier Gérard

STATUS

approved

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Last modified March 19 23:02 EDT 2019. Contains 321343 sequences. (Running on oeis4.)