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Search: id:A143704
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A143704 (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,..). +0
1
9, 20, 35, 15, 20, 26, 32, 50, 102, 10, 42, 56, 199, 15, 14, 48, 28, 93, 72, 88, 95, 18, 185, 63, 45, 92, 430, 44, 25, 1175, 18, 18, 21, 38, 132, 60, 39, 190, 1829, 12, 132, 68, 549, 36, 938, 68, 52, 852, 15, 150, 200, 8, 286, 65, 324, 32, 3569, 12, 204, 135, 93 (list; graph; listen)
OFFSET

1,1

EXAMPLE

a(8)=(7+3)*5=10*5=50.

a(9)=(2+4)*17=102.

a(10)=(2+3)*2=10.

a(11)=(19+2)*2=42.

a(12)=(5+3)*7=56.

a(13)=(2+11)*23=199,

etc.

CROSSREFS

Cf. A141287, A141261, A136735.

Sequence in context: A028566 A147479 A146680 this_sequence A128153 A109805 A013573

Adjacent sequences: A143701 A143702 A143703 this_sequence A143705 A143706 A143707

KEYWORD

nonn

AUTHOR

Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Nov 13 2008

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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.


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