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A134693 a(n)=A133806(n)+A133806(n+6). 0
3, 9, 6, 18, 12, 36, 24, 72, 48, 144, 96, 288, 192, 576, 384, 1152, 768, 2304, 1536, 4608, 3072, 9216, 6144, 18432, 12288, 36864, 24576, 73728, 49152, 147456, 98304, 294912, 196608, 589824, 393216, 1179648, 786432, 2359296, 1572864, 4718592, 3145728 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

FORMULA

a(n)=3*A074323(n+1).

a(2n)=A007283(n). a(2n+1)=3*A007283(n).

O.g.f.: 3(1+3x)/(1-2x^2). - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 22 2008

CROSSREFS

Sequence in context: A189272 A131954 A154593 * A096948 A179483 A016676

Adjacent sequences:  A134690 A134691 A134692 * A134694 A134695 A134696

KEYWORD

nonn

AUTHOR

Paul Curtz (bpcrtz(AT)free.fr), Jan 27 2008

EXTENSIONS

Edited and extended by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 22 2008

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Last modified February 15 21:56 EST 2012. Contains 205860 sequences.