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A039432
Numbers whose base-10 representation has the same nonzero number of 6's and 7's.
0
67, 76, 167, 176, 267, 276, 367, 376, 467, 476, 567, 576, 607, 617, 627, 637, 647, 657, 670, 671, 672, 673, 674, 675, 678, 679, 687, 697, 706, 716, 726, 736, 746, 756, 760, 761, 762, 763, 764, 765, 768, 769, 786, 796, 867, 876, 967, 976, 1067, 1076
OFFSET
1,1
MATHEMATICA
Select[Range[1200], DigitCount[#, 10, 6]==DigitCount[#, 10, 7]>0&] (* Harvey P. Dale, Apr 08 2019 *)
CROSSREFS
Sequence in context: A225626 A345214 A277429 * A043255 A044035 A124476
KEYWORD
nonn,base,easy
STATUS
approved