A039432 Numbers whose base-10 representation has the same nonzero number of 6's and 7's.

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

Links

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

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

Adjacent sequences: A039429 A039430 A039431 * A039433 A039434 A039435

Keyword

nonn,base,easy

Author

Olivier Gérard

Status

approved