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Search: id:A161177
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| 2, 4, 12, 32, 96, 240, 640, 1280, 2560, 9600, 19200, 57344
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OFFSET
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1,1
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COMMENT
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The numbers are divisible by higher and higher powers of 2 beacuse the numbers in A005179 typically have a "tail" of primes occuring in first power only.
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EXAMPLE
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a(3)=12: The third prime is 5 and A005179(12)=60 is the first multiple of 5 occuring in sequence A005179.
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CROSSREFS
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Sequence in context: A026151 A025178 A087211 this_sequence A039721 A148193 A002528
Adjacent sequences: A161174 A161175 A161176 this_sequence A161178 A161179 A161180
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KEYWORD
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more,nonn
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AUTHOR
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Hagen von Eitzen (math(AT)von-eitzen.de), Jun 05 2009
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