A039130 Numbers whose base-10 representation has the same number of 2's and 5's.

0, 1, 3, 4, 6, 7, 8, 9, 10, 11, 13, 14, 16, 17, 18, 19, 25, 30, 31, 33, 34, 36, 37, 38, 39, 40, 41, 43, 44, 46, 47, 48, 49, 52, 60, 61, 63, 64, 66, 67, 68, 69, 70, 71, 73, 74, 76, 77, 78, 79, 80, 81, 83, 84, 86, 87, 88, 89, 90, 91, 93, 94, 96, 97, 98, 99, 100, 101, 103

Offset

1,3

Links

Table of n, a(n) for n=1..69.

Mathematica

Select[Range[0, 110], DigitCount[#, 10, 2]==DigitCount[#, 10, 5]&] (* Harvey P. Dale, Jul 25 2011 *)

Crossrefs

Sequence in context: A114316 A039176 A066533 * A361780 A004712 A122409

Adjacent sequences: A039127 A039128 A039129 * A039131 A039132 A039133

Keyword

nonn,base,easy

Author

Olivier Gérard

Status

approved