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A175683
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Numbers n such that 30n-13, 30n-11, 30n-1, 30n+1, 30n+11, 30n+13 are all prime.
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1
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1, 43, 141, 720, 3038, 3466, 3772, 4068, 7896, 11402, 14070, 17499, 18683, 20887, 25166, 26586, 30311, 33237, 44072, 49791, 56629, 58268, 58764, 71483, 71953, 74284, 79939, 86022, 87199, 88941, 91951, 92273, 100176, 102019, 107505, 109438
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OFFSET
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1,2
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LINKS
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EXAMPLE
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a(1)=1 because 30*1-13=17=prime, 30*1-11=19=prime, 30*1-1=29=prime, 30*1+1=31=prime, 30*1+11=41=prime, 30*1+13=43=prime.
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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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Corrected (3472 replaced by 3772, 49776 replaced by 49791) and extended by R. J. Mathar, Aug 13 2010
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STATUS
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approved
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