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Search: id:A136740
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| A136740 |
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(0, 1, 2, 3, 2^2, 5, 2*3, 7, 2^3, 3^2, 2*5, 11, 2^2*3,..) becomes (2, 3, 5, 7, 11^13, 17, 19*23, 29, 31^37, 41^43, 47*53, 59, 61^67*71,..). |
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+0
11
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OFFSET
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1,1
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EXAMPLE
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a(5)=11^13=34522712142931.
a(7)=19*23=437,
etc.
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CROSSREFS
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Cf. A141269, A141270, A143681, A143652, A143653, A143666.
Sequence in context: A007659 A037948 A145380 this_sequence A105994 A120496 A105150
Adjacent sequences: A136737 A136738 A136739 this_sequence A136741 A136742 A136743
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KEYWORD
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nonn
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AUTHOR
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Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Nov 08 2008
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EXTENSIONS
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Corrected typo in a(5), inserted a(6). R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 21 2009
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