A045251 Numbers whose base-5 representation contains exactly one 1 and no 4's.

1, 5, 7, 8, 11, 16, 25, 27, 28, 35, 37, 38, 40, 42, 43, 51, 55, 57, 58, 61, 66, 76, 80, 82, 83, 86, 91, 125, 127, 128, 135, 137, 138, 140, 142, 143, 175, 177, 178, 185, 187, 188, 190, 192, 193, 200, 202, 203, 210, 212, 213, 215, 217, 218

Offset

1,2

Links

Harvey P. Dale, Table of n, a(n) for n = 1..1000

Mathematica

Select[Range[250], DigitCount[#, 5, 1]==1&&DigitCount[#, 5, 4]==0&] (* Harvey P. Dale, Feb 26 2022 *)

Crossrefs

Cf. A007091.

Sequence in context: A285081 A394379 A154370 * A099497 A327960 A347127

Adjacent sequences: A045248 A045249 A045250 * A045252 A045253 A045254

Keyword

nonn,base

Author

Clark Kimberling

Status

approved