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Search: id:A080881
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A080881 a(n)*a(n+3) - a(n+1)*a(n+2) = 2^n, given a(0)=1, a(1)=2, a(2)=10. +0
7
1, 2, 10, 21, 106, 223, 1126, 2369, 11962, 25167, 127078, 267361, 1350010, 2840303, 14341798, 30173889, 152359738, 320551567, 1618589926, 3405371681, 17195050234, 36176882223, 182671192870, 384324217729, 1940602920634 (list; graph; listen)
OFFSET

0,2

FORMULA

G.f.: (-x^3 - x^2 + 2*x + 1)/(4*x^4 - 11*x^2 + 1)

CROSSREFS

Cf. A080876, A080877, A080878, A080879, A080880, A080882.

Sequence in context: A029994 A004643 A037422 this_sequence A138298 A119153 A065450

Adjacent sequences: A080878 A080879 A080880 this_sequence A080882 A080883 A080884

KEYWORD

nonn

AUTHOR

Paul D. Hanna (pauldhanna(AT)juno.com), Feb 22 2003

page 1

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.


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