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A039474 Numbers whose base-11 representation has the same nonzero number of 4's and 7's. 0
51, 81, 172, 202, 293, 323, 414, 444, 491, 502, 513, 524, 546, 557, 561, 562, 563, 564, 566, 567, 569, 570, 571, 579, 590, 601, 656, 686, 777, 807, 851, 862, 873, 884, 891, 892, 893, 894, 896, 897, 899, 900, 901, 906, 917, 939, 950, 961, 1019, 1049 (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[#, 11, 4]==DigitCount[#, 11, 7]>0&]  (* Harvey P. Dale, Mar 14 2011 *)

CROSSREFS

Sequence in context: A242045 A113285 A050698 * A253020 A020180 A049328

Adjacent sequences:  A039471 A039472 A039473 * A039475 A039476 A039477

KEYWORD

nonn,base,easy

AUTHOR

Olivier Gérard

STATUS

approved

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Last modified October 19 22:00 EDT 2021. Contains 348095 sequences. (Running on oeis4.)