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Search: id:A085877
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| A085877 |
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Smallest square k^2 == 1 (mod 10^n) where k > 1. |
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+0
2
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| 81, 2401, 62001, 1560001, 351600001, 47852000001, 610350000001, 586547900000001, 5508423000000001, 2032852170000000001, 184259414700000000001, 26756525040000000000001, 26756525040000000000001
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Sequence is infinite as (10^n + 1)^2 is a candidate, i.e. a(n) < = (10^n +1)^2.
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CROSSREFS
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Cf. A085878.
Sequence in context: A038676 A016840 A128832 this_sequence A123219 A018223 A038398
Adjacent sequences: A085874 A085875 A085876 this_sequence A085878 A085879 A085880
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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), Jul 07 2003
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EXTENSIONS
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Corrected and extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Jul 09 2003
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