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A092504
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a(n) = prime(n) + prime(n^2).
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2
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4, 10, 28, 60, 108, 164, 244, 330, 442, 570, 692, 864, 1050, 1236, 1474, 1672, 1938, 2204, 2504, 2812, 3156, 3540, 3886, 4300, 4734, 5152, 5622, 6114, 6590, 7110, 7700, 8292, 8874, 9480, 10080, 10778, 11478, 12212, 12910, 13672, 14506, 15282, 16068
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OFFSET
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1,1
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LINKS
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FORMULA
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EXAMPLE
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a(1) = 4 because prime(1) = 2 and prime(1) = 2.
a(2) = 10 because prime(2) = 3 and prime(4) = 7.
a(3) = 28 because prime(3) = 5 and prime(9) = 23.
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MATHEMATICA
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CROSSREFS
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KEYWORD
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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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