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A069591
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Smallest prime in which the n-th significant digit is a 7.
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6
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7, 71, 701, 7001, 70001, 700001, 7000003, 70000027, 700000001, 7000000001, 70000000033, 700000000009, 7000000000009, 70000000000009, 700000000000051, 7000000000000037, 70000000000000003, 700000000000000033
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OFFSET
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1,1
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LINKS
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Table of n, a(n) for n=1..18.
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MAPLE
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7, seq(nextprime(7*10^j), j=1..32);
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MATHEMATICA
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Join[{7}, NextPrime/@(7*10^Range[20])] (* Harvey P. Dale, Jun 17 2021 *)
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CROSSREFS
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Cf. A069588, A069589, A069590.
Sequence in context: A196900 A319963 A198966 * A039920 A100895 A065537
Adjacent sequences: A069588 A069589 A069590 * A069592 A069593 A069594
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KEYWORD
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base,nonn
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AUTHOR
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Amarnath Murthy, Mar 25 2002
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EXTENSIONS
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More terms from Sascha Kurz, Mar 28 2002
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STATUS
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approved
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