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A244032
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Positive numbers n such that there exists a positive number m != n such that x^2+ny^2 and x^2+my^2 represent the same odd primes.
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0
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1, 4, 8, 9, 12, 16, 24, 45, 48, 72, 80, 120, 240
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OFFSET
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1,2
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COMMENTS
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There are no other terms for which both n and m are < 100000.
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LINKS
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EXAMPLE
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For example, 9 and 12 are members because the odd primes (in fact all the primes) represented by x^2+9y^2 and x^2+12y^2 are the same - see A068228.
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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