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Search: id:A139020
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| 1, 3, 8, 19, 32, 49, 128, 211, 33554432, 67108933, 2199023255552, 4397979403333, 9007199254740992, 18010000530080323
(list; graph; listen)
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OFFSET
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0,2
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COMMENT
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By definition, every term is a power of a prime.
For all n >= 1, a(2n) = 2^m, m >= 0.
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LINKS
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Leroy Quet, Home Page (listed in lieu of email address)
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CROSSREFS
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Cf. A139019, A139022.
Sequence in context: A091109 A123982 A113535 this_sequence A147358 A086167 A083186
Adjacent sequences: A139017 A139018 A139019 this_sequence A139021 A139022 A139023
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KEYWORD
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more,nonn
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AUTHOR
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Leroy Quet Apr 06 2008
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EXTENSIONS
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Corrected and extended by M. F. Hasler (www.univ-ag.fr/~mhasler), Apr 07 2008
a(10)-a(13) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Nov 30 2008
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