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Search: id:A135483
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A135483 a(n)=[sum(i=0,n, p(i)*2^i)]/2, where p(i) denotes i-th prime number. +0
1
1, 4, 14, 42, 130, 338, 882, 2098, 5042, 12466, 28338, 66226, 150194, 326322, 711346 (list; graph; listen)
OFFSET

1,2
CROSSREFS

Cf. A000040, A000079.

Sequence in context: A124617 A124618 A007076 this_sequence A095377 A049539 A037528

Adjacent sequences: A135480 A135481 A135482 this_sequence A135484 A135485 A135486

KEYWORD

nonn

AUTHOR

Ctibor O. Zizka (ctibor.zizka(AT)seznam.cz), Feb 07 2008

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.

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