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A057224
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Numbers n such that (Product of first n Mersenne prime exponents) + 1 is prime.
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1
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OFFSET
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1,2
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LINKS
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PROG
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(PARI) lista(v) = {for (n=1, #v, if (isprime(prod(k=1, n, v[k]) + 1), print1(n, ", ")); ); } \\ with v=A000043; Michel Marcus, Jan 07 2014
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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