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Search: id:A070854
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| A070854 |
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Smallest prime == 1 mod (10^n). |
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+0
2
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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
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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a(6) through a(21) have been certified prime with Primo. - Rick L. Shepherd (rshepherd2(AT)hotmail.com), Jun 03 2002
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PROGRAM
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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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Cf. A070846 to A070853.
Sequence in context: A088292 A135563 A052075 this_sequence A075767 A080176 A064490
Adjacent sequences: A070851 A070852 A070853 this_sequence A070855 A070856 A070857
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KEYWORD
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nonn
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AUTHOR
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Amarnath Murthy (amarnath_murthy(AT)yahoo.com), May 15 2002
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EXTENSIONS
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More terms from Rick L. Shepherd (rshepherd2(AT)hotmail.com), Jun 03 2002
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