id:A025577 - OEIS Search Results

Search: id:A025577

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G.f.: (x/(1-x))*sqrt((1+x)/(1-3*x)).

+0
2

1, 3, 7, 17, 43, 113, 305, 839, 2339, 6585, 18677, 53283, 152725, 439455, 1268623, 3672457, 10656691, 30988249, 90275989, 263425651, 769801873, 2252531971, 6599018227, 19353381877, 56814946381, 166940119063, 490930181515, 1444813563869 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Sum{T(k, k-1), k = 1, 2, ..., n}, where T is the array defined in A025564.` `Partial sums of A025565.` `Sequence in context: A142975 A114589 A078679 this_sequence A085279 A153133 A123601` `Adjacent sequences: A025574 A025575 A025576 this_sequence A025578 A025579 A025580`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`
	EXTENSIONS	`G.f. from Vladeta Jovovic (vladeta(AT)eunet.rs), Jan 17 2004`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research