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A070854
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Smallest prime == 1 mod (10^n).
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1
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11, 101, 3001, 70001, 700001, 22000001, 30000001, 600000001, 6000000001, 30000000001, 1900000000001, 18000000000001, 40000000000001, 3900000000000001, 6000000000000001, 130000000000000001, 3700000000000000001, 15000000000000000001, 150000000000000000001, 600000000000000000001, 16000000000000000000001
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OFFSET
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1,1
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COMMENTS
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a(6) through a(21) have been certified prime with Primo. - Rick L. Shepherd, Jun 03 2002
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LINKS
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FORMULA
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PROG
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(PARI) b(n, k) = k*10^n+1 for(n=1, 25, k=1; while(!isprime(b(n, k)), k++); print1(b(n, k), ", "))
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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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