cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A044958 Numbers with no two equally numerous base 9 digits.

Original entry on oeis.org

1, 2, 3, 4, 5, 6, 7, 8, 10, 20, 30, 40, 50, 60, 70, 80, 81, 82, 90, 91, 92, 93, 94, 95, 96, 97, 98, 100, 101, 109, 111, 118, 121, 127, 131, 136, 141, 145, 151, 154, 161, 162, 164, 172, 173, 180, 181, 182, 183, 184, 185, 186, 187, 188
Offset: 1

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  • Mathematica
    Select[Range[200],Min[Differences[Sort[Transpose[Tally[ IntegerDigits[ #,9]]][[2]]]]]>0&] (* Harvey P. Dale, Apr 21 2012 *)