A039325 Numbers whose base-7 representation has the same nonzero number of 3's and 6's.

27, 45, 76, 94, 125, 143, 153, 160, 167, 181, 188, 189, 190, 191, 193, 194, 223, 241, 272, 290, 297, 304, 311, 315, 316, 317, 319, 320, 325, 332, 370, 388, 419, 437, 468, 486, 496, 503, 510, 524, 531, 532, 533, 534, 536, 537, 566, 584, 615, 633, 640, 647

Offset

1,1

Links

Table of n, a(n) for n=1..52.

Mathematica

Select[Range[700], DigitCount[#, 7, 3]==DigitCount[#, 7, 6]>0&] (* Harvey P. Dale, May 19 2011 *)

Crossrefs

Cf. A007093.

Sequence in context: A113481 A328897 A369979 * A043148 A043928 A275250

Adjacent sequences: A039322 A039323 A039324 * A039326 A039327 A039328

Keyword

nonn,base,easy

Author

Olivier Gérard

Status

approved