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• arethuza 15y ago
  That's exactly what I thought then I read the article which does state that they are talking about base ten.
  • forinti 15y ago
    For base 2, you can use Pascal's triangle to find out how many numbers with x zeroes (or ones) exist up to 2^n: http://alquerubim.blogspot.com/2010/10/combinacoes-de-digitos.html http://alquerubim.blogspot.com/2010/10/combinacoes-de-digito... (portuguese only, I'm afraid). From base 3 onwards, I would expect to see some "subparticles" inside each number in the triangle. I would start from there.