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A144956
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Primes of the form (n!)^2-n-1.
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0
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571, 437763136697395052543999983, 30278850633655058582710149233337530603447722122319635563188698934564270838098005054611040868761599999999999999999953, 296311412699225200908163606272742319721883625208450035597320979733142050442134850821917320943689294427554413789065603782543495882098138306686767337419309055999999999999999999999999999933
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OFFSET
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1,1
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COMMENTS
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Corresponding values of n are 4, 16, 46, 66, 72, 562, .... [Charles R Greathouse IV, Oct 05 2011]
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LINKS
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Table of n, a(n) for n=1..4.
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MATHEMATICA
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lst={}; Do[s=n!^2-n; If[PrimeQ[p=s-1], AppendTo[lst, p]], {n, 5!}]; lst
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PROG
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(PARI) for(n=1, 99, if(ispseudoprime(t=n!^2-n-1), print1(t", "))) \\ Charles R Greathouse IV, Oct 05 2011
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CROSSREFS
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Sequence in context: A142767 A251384 A076465 * A178323 A049361 A252633
Adjacent sequences: A144953 A144954 A144955 * A144957 A144958 A144959
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KEYWORD
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nonn
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AUTHOR
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Vladimir Joseph Stephan Orlovsky, Sep 27 2008
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STATUS
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approved
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