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Search: id:A138834
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| 2, 16, 4096, 262144, 1152921504606846976, 81129638414606681695789005144064
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Also, bisection of superperfect numbers A019279, if there are no odd superperfect numbers.
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CROSSREFS
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Cf. A019279, A061652, A099057, A099058, A134721, A134722.
Sequence in context: A165644 A158506 A167435 this_sequence A088321 A061301 A092798
Adjacent sequences: A138831 A138832 A138833 this_sequence A138835 A138836 A138837
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KEYWORD
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more,nonn
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AUTHOR
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Omar E. Pol (info(AT)polprimos.com), Apr 06 2008
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