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A274758
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Least number whose square is the sum of two positive triangular numbers in exactly n ways.
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1
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2, 4, 9, 34, 91, 66, 534, 121, 134, 716, 40391, 516
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OFFSET
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1,1
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COMMENTS
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LINKS
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EXAMPLE
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a(1) = 2 because 2^2 = 1 + 3.
a(2) = 4 because 4^2 = 1 + 15 = 6 + 10.
a(3) = 9 because 9^2 = 3 + 78 = 15 + 66 = 36 + 45.
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CROSSREFS
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KEYWORD
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nonn,more
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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