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A144162 Numbers with at least two digits in which all digits except the rightmost are 0 or 5 and the rightmost is neither 0 nor 5. 2
51, 52, 53, 54, 56, 57, 58, 59, 501, 502, 503, 504, 506, 507, 508, 509, 551, 552, 553, 554, 556, 557, 558, 559, 5001, 5002, 5003, 5004, 5006, 5007, 5008, 5009, 5051, 5052, 5053, 5054, 5056, 5057, 5058, 5059, 5501, 5502, 5503, 5504, 5506, 5507, 5508, 5509, 5551 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

These are called f-type numbers, cf. A163396.

LINKS

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

Index entries for sequences related to carryless arithmetic

MATHEMATICA

Flatten[Table[10#+r, {r, {1, 2, 3, 4, 6, 7, 8, 9}}]&/@FromDigits/@(Join[{5}, #]&/@ Flatten[ Table[Tuples[{0, 5}, f], {f, 0, 3}], 1])] (* Harvey P. Dale, Oct 18 2020 *)

CROSSREFS

Cf. A143712, A163396, A169984.

Sequence in context: A210183 A210086 A031959 * A169984 A042299 A321962

Adjacent sequences:  A144159 A144160 A144161 * A144163 A144164 A144165

KEYWORD

nonn,base

AUTHOR

David Applegate, Marc LeBrun and N. J. A. Sloane, Aug 24 2010

STATUS

approved

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Last modified February 27 11:05 EST 2021. Contains 341649 sequences. (Running on oeis4.)