A037331 Numbers whose base-7 and base-8 expansions have the same digit sum.

1, 2, 3, 4, 5, 6, 91, 92, 93, 94, 95, 133, 134, 135, 176, 177, 178, 179, 180, 181, 217, 218, 219, 220, 221, 222, 223, 259, 260, 261, 262, 263, 304, 305, 306, 307, 385, 386, 387, 388, 389, 390, 391, 432, 433, 472, 473, 474, 475, 553

Offset: 1

Author

Clark Kimberling

Keywords

• nonn
• base

Programs

Mathematica

Select[Range[600],Total[IntegerDigits[#,7]]==Total[IntegerDigits[#,8]]&] (* Harvey P. Dale, Sep 05 2015 *)

Formula

{n: A053828(n) = A053829(n).} - R. J. Mathar, Jun 30 2021