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A143707
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(1, 2, 3, 2^2, 5, 2*3, 7, 2^3, 3^2, 2*5, 11, 2^2*3, 13, 2*7, 3*5,..) becomes (1*(2+3), 2*(2+5), 2*(3+7), 2*(3+3), 2*(2+5), 11*(2+2), 3*(13+2), 7*(3+5),..).
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0
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5, 14, 20, 12, 14, 44, 45, 56, 42, 10, 76, 50, 68, 12, 20, 78, 18, 145, 165, 70, 44, 28, 117, 44, 65, 215, 150, 26, 21, 140, 14, 28, 25, 68, 715, 24, 55, 154, 176, 10, 315, 155, 56, 75, 234, 38, 75, 390, 12, 150, 296, 8, 342, 32, 474, 35, 248, 10, 154, 92, 145, 1001, 21, 105
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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EXAMPLE
| a(8)=7*(3+5)=7*8=56.
a(9)=2*(4+17)=2*21=42.
a(10)=2*(3+2)=2*5=10.
a(11)=19*(2+2)=19*4=40.
a(12)=5*(3+7)=5*10=50.
a(13)=2*(11+23)=2*34=68,
etc.
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CROSSREFS
| Cf. A141287, A141261, A136735.
Sequence in context: A102884 A071852 A022139 * A003248 A071317 A167201
Adjacent sequences: A143704 A143705 A143706 * A143708 A143709 A143710
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KEYWORD
| nonn
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AUTHOR
| Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Nov 13 2008
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EXTENSIONS
| Corrected (40 replaced by 76, 18 by 12, 90 by 70 etc.) by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Apr 18 2010
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