A039609 Numbers whose base-12 representation has the same nonzero number of 1's and 7's.

19, 85, 151, 175, 187, 199, 211, 223, 228, 230, 231, 232, 233, 234, 236, 237, 238, 239, 247, 259, 271, 283, 307, 373, 451, 517, 595, 661, 739, 805, 883, 949, 1009, 1020, 1022, 1023, 1024, 1025, 1026, 1028, 1029, 1030, 1031, 1033, 1045, 1057

Offset

1,1

Links

Table of n, a(n) for n=1..46.

Mathematica

Select[Range[1200], DigitCount[#, 12, 1]==DigitCount[#, 12, 7]>0&] (* Harvey P. Dale, Oct 25 2023 *)

Crossrefs

Sequence in context: A209369 A288749 A358932 * A063496 A027848 A183623

Adjacent sequences: A039606 A039607 A039608 * A039610 A039611 A039612

Keyword

nonn,base,easy

Author

Olivier Gérard

Status

approved