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A092044
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Numbers n such that prime(n) == -2 (mod n).
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14
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1, 11, 71, 637319, 637323, 637327, 179993015, 1208198861, 8179002163, 8179002189, 55762149067, 55762149103, 6201265271239787, 43525513764814971, 43525513764815121, 2159986889494444325, 2159986889494445481, 2159986889494445499, 2159986889494447181
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OFFSET
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1,2
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LINKS
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MATHEMATICA
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NextPrim[n_] := Block[{k = n + 1}, While[ !PrimeQ[k], k++ ]; k]; p = 1; Do[ If[ Mod[p = NextPrim[p], n] == n - 2, Print[n]], {n, 1, 10^9}]
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PROG
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(PARI) for(i=1, 10^9, if(Mod(prime(i), i)==-2, print1(i, ", ")));
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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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Corrected by Mohammed Bouayoun (bouyao(AT)wanadoo.fr), Feb 20 2004
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STATUS
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approved
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