Forbidden numbers: Difference between revisions
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(1+i.y)-.s1,s2,s3
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In other words: <code>s1</code> is square numbers up through y, <code>s2</code> is unique sums of those squares up through y, <code>s3</code> is unique sums of members of those two sequences, up through y, and our result is numbers up through y which do not appear in <code>s1</code>, <code>s2</code> or <code>s3</code>.
The task then becomes:
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