A039042 Numbers whose base-7 representation has the same number of 2's and 5's.

0, 1, 3, 4, 6, 7, 8, 10, 11, 13, 19, 21, 22, 24, 25, 27, 28, 29, 31, 32, 34, 37, 42, 43, 45, 46, 48, 49, 50, 52, 53, 55, 56, 57, 59, 60, 62, 68, 70, 71, 73, 74, 76, 77, 78, 80, 81, 83, 86, 91, 92, 94, 95, 97, 103, 110, 124, 131, 133, 134, 136, 137, 139, 145, 147, 148

Offset

1,3

Links

Harvey P. Dale, Table of n, a(n) for n = 1..1000

Mathematica

Select[Range[0, 200], DigitCount[#, 7, 2]==DigitCount[#, 7, 5]&] (* Harvey P. Dale, Dec 19 2016 *)

Crossrefs

Sequence in context: A184578 A022846 A083922 * A007378 A274829 A087758

Adjacent sequences: A039039 A039040 A039041 * A039043 A039044 A039045

Keyword

nonn,base,easy

Author

Olivier Gérard

Status

approved