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A039407 Numbers n such that representation in base 10 has same nonzero number of 1's and 7's. 0
17, 71, 107, 127, 137, 147, 157, 167, 170, 172, 173, 174, 175, 176, 178, 179, 187, 197, 217, 271, 317, 371, 417, 471, 517, 571, 617, 671, 701, 710, 712, 713, 714, 715, 716, 718, 719, 721, 731, 741, 751, 761, 781, 791, 817, 871, 917, 971, 1007, 1027 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

CROSSREFS

Sequence in context: A179038 A179039 A152295 * A043230 A044010 A106921

Adjacent sequences:  A039404 A039405 A039406 * A039408 A039409 A039410

KEYWORD

nonn,base,easy

AUTHOR

Olivier Gérard

STATUS

approved

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Last modified October 23 17:32 EDT 2019. Contains 328373 sequences. (Running on oeis4.)