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Search: id:A132397
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A132397 Second trisection of A024494. +0
1
2, 10, 86, 682, 5462, 43690, 349526, 2796202, 22369622, 178956970, 1431655766, 11453246122, 91625968982, 733007751850, 5864062014806, 46912496118442, 375299968947542, 3002399751580330, 24019198012642646, 192153584101141162 (list; graph; listen)
OFFSET

0,1

FORMULA

O.g.f.: 2(2x-1)/((x+1)(8x-1)). a(n) = 2*A082311(n). - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jan 13 2008

CROSSREFS

Cf. A082311, A132805.

Adjacent sequences: A132394 A132395 A132396 this_sequence A132398 A132399 A132400

Sequence in context: A113332 A107863 A065866 this_sequence A111811 A144002 A060350

KEYWORD

nonn

AUTHOR

Paul Curtz (bpcrtz(AT)free.fr), Nov 20 2007

EXTENSIONS

More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jan 13 2008

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Last modified October 13 20:18 EDT 2008. Contains 145016 sequences.


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