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A038346
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Sum of first n primes of form 4k+1.
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3
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5, 18, 35, 64, 101, 142, 195, 256, 329, 418, 515, 616, 725, 838, 975, 1124, 1281, 1454, 1635, 1828, 2025, 2254, 2487, 2728, 2985, 3254, 3531, 3812, 4105, 4418, 4735, 5072, 5421, 5774, 6147, 6536, 6933
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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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MATHEMATICA
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Accumulate[Select[Prime[Range[100]], IntegerQ[(#-1)/4]&]] (* Harvey P. Dale, Jul 25 2011 *)
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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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Den Roussel (DenRoussel(AT)webtv.net)
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EXTENSIONS
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STATUS
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approved
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