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A256301
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Least prime p such that p + k! is prime for all k = 2..n.
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1
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2, 3, 5, 5, 17, 107, 107, 107, 107, 82954517, 82954517, 79017245897, 79017245897, 1490524895687, 13101487760627087
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OFFSET
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1,1
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COMMENTS
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The function f(k;p) = p+(k+1)! could be called an example of a non-polynomial prime generating function.
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LINKS
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PROG
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(PARI) a(n)=forprime(p=1, , for(i=2, n, ispseudoprime(p+i!)||next(2)); return(p))
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CROSSREFS
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KEYWORD
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nonn,more
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AUTHOR
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EXTENSIONS
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Erroneous a(12) deleted and new a(14) from Khalid Sabry, Jan 25 2020
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STATUS
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approved
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