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Search: id:A133295
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| A133295 |
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Smallest square-free k such that the first n nonzero values of mu(j), j>=k, are all equal (mu is the Moebius function). |
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1
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OFFSET
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1,2
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EXAMPLE
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a(6)=201 because the first occurrence of 6 consecutive squarefree numbers with numbers of prime divisors having the same parity is 201, 202, 203, 205, 206, 209
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CROSSREFS
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Sequence in context: A037292 A028372 A130678 this_sequence A055470 A003110 A100956
Adjacent sequences: A133292 A133293 A133294 this_sequence A133296 A133297 A133298
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KEYWORD
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nonn
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AUTHOR
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Michel Balazard (balazard(AT)math.u-bordeaux1.fr), Oct 17 2007, Oct 19 2007
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