id:A162480 - OEIS Search Results

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Expansion of 1/((1-x)^2*sqrt(1-4x/(1-x)^4)).

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1, 4, 21, 126, 797, 5190, 34439, 231556, 1572135, 10754148, 74001735, 511686726, 3552251429, 24743806370, 172853699427, 1210514603212, 8495774193707, 59739915525288, 420785972800187, 2968344133842182, 20967995689677183 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`Partial sums of A162479.`
	FORMULA	`G.f.: 1/((1-x)^2-2x/((1-x)^2-x/((1-x)^2-x/((1-x)^2-... (continued fraction);` `a(n)=a(n)=sum{k=0..n, C(n+3k+1,n-k)*A000984(k)}.`
	CROSSREFS	`Sequence in context: A101478 A153291 A093965 this_sequence A003168 A032326 A007345` `Adjacent sequences: A162477 A162478 A162479 this_sequence A162481 A162482 A162483`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Jul 04 2009`

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

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