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A136611
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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 (0, 1, 2, 3, 4^5, 6, 7*8, 9, 10^11, 12^13, 14*15, 16, 17^18*19,..).
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1
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0, 1, 2, 3, 1024, 6, 56, 9, 100000000000, 106993205379072, 210, 16, 267198604589286774829171, 20, 462, 552, 2220446049250313080847263336181640625, 27
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,3
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EXAMPLE
| a(5)=4^5=1024.
a(7)=7*8=56.
a(9)=10^11=100000000000.
a(10)=12^13=19216339899072.
a(11)=14*15=210.
a(12)=17^18*19=266314164608823014829171,
etc.
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CROSSREFS
| Cf. A141269, A141270.
Sequence in context: A108332 A066685 A076155 * A004898 A062920 A036111
Adjacent sequences: A136608 A136609 A136610 * A136612 A136613 A136614
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KEYWORD
| nonn
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AUTHOR
| Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Nov 08 2008
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EXTENSIONS
| a(10) and a(13) corrected and 2 terms appended - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Apr 14 2010
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