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A127316
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a(n) = 2*n^2 - 4*n + 73.
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1
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71, 73, 79, 89, 103, 121, 143, 169, 199, 233, 271, 313, 359, 409, 463, 521, 583, 649, 719, 793, 871, 953, 1039, 1129, 1223, 1321, 1423, 1529, 1639, 1753, 1871, 1993, 2119, 2249, 2383, 2521, 2663, 2809, 2959, 3113, 3271, 3433, 3599, 3769, 3943, 4121, 4303, 4489
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OFFSET
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1,1
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COMMENTS
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Extrapolates a quadratic passing through 71, 73, 79.
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LINKS
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FORMULA
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EXAMPLE
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If n=10 then 2n^2 - 4n + 73 = 233.
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MATHEMATICA
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PROG
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CROSSREFS
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KEYWORD
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easy,nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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