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A071556
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Smallest x > 1 such that x^prime(n) == 1 mod(prime(i)) 4<=i<=n.
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0
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8, 78, 1002, 17018, 323324, 7436430, 215656442, 6685349672, 247357937828, 10141675450908, 436092044389002, 20496326086283048, 1086305282573001492, 64092011671807087970, 3909612711980232366110, 261944051702675568529304
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OFFSET
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4,1
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LINKS
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FORMULA
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PROG
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(PARI) for(n=3, 20, print1((prod(i=1, n, prime(i))+30)/30, ", "))
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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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STATUS
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approved
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