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Search: id:A145524
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| A145524 |
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Least integer k>0 such that A000041(k) is divisible by 10^n. |
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+0
2
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OFFSET
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0,2
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COMMENT
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The requirement a(n)>0 is somewhat arbitrary, chosen for agreement with A046641 ; a(n)>=0 would have been possible, too, yielding a(0)=0.
a(9) > 10^7. [From Max Alekseyev (maxale(AT)gmail.com), Oct 18 2008]
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FORMULA
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a(n) = A046641(10^n)
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CROSSREFS
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Cf. A000041, A046641, A145523
Sequence in context: A015465 A144782 A075232 this_sequence A037533 A001716 A028991
Adjacent sequences: A145521 A145522 A145523 this_sequence A145525 A145526 A145527
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KEYWORD
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more,nonn
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AUTHOR
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M. F. Hasler (Maximilian.Hasler(AT)gmail.com), Oct 12 2008
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EXTENSIONS
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a(6)..a(8) from Max Alekseyev (maxale(AT)gmail.com), Oct 18 2008
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