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A161471
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Primes of the form k^k + k + 1.
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4
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OFFSET
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1,1
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COMMENTS
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a(7) = 116035988662615798148247830...0301775295923724561430603629007 (1232 digits).
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LINKS
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FORMULA
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MATHEMATICA
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Unprotect[Power]; Power[0, 0] = 1; Protect[Power]; lst={}; Do[p=n^n+n+1; If[PrimeQ[p], AppendTo[lst, p]], {n, 0, 100}]; lst
Join[{2}, Select[Table[k^k+k+1, {k, 1000}], PrimeQ]] (* Harvey P. Dale, Oct 09 2022 *)
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PROG
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(PARI) lista(nn) = for(k=0, nn, if(ispseudoprime(q=k^k+k+1), print1(q, ", "))); \\ Jinyuan Wang, Mar 01 2020
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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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STATUS
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approved
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