A039408 - OEIS

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A039408

Numbers whose base-10 representation has the same nonzero number of 1's and 8's.

18, 81, 108, 128, 138, 148, 158, 168, 178, 180, 182, 183, 184, 185, 186, 187, 189, 198, 218, 281, 318, 381, 418, 481, 518, 581, 618, 681, 718, 781, 801, 810, 812, 813, 814, 815, 816, 817, 819, 821, 831, 841, 851, 861, 871, 891, 918, 981, 1008, 1028

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

OFFSET

1,1

LINKS

Table of n, a(n) for n=1..50.

MATHEMATICA

Select[Range[1200], DigitCount[#, 10, 1]==DigitCount[#, 10, 8]>0&] (* Harvey P. Dale, Feb 04 2015 *)

CROSSREFS

Sequence in context: A219144 A063495 A264850 * A043231 A044011 A338039

Adjacent sequences: A039405 A039406 A039407 * A039409 A039410 A039411

KEYWORD

nonn,base,easy

AUTHOR

Olivier Gérard

STATUS

approved