id:A088013 - OEIS Search Results

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Binomial transform of A001541 (with interpolated zeros).

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1, 1, 4, 10, 36, 116, 400, 1352, 4624, 15760, 53824, 183712, 627264, 2141504, 7311616, 24963200, 85229824, 290992384, 993510400, 3392055808, 11581203456, 39540700160, 135000395776, 460920178688, 1573679927296, 5372879343616 (list; graph; listen)

	OFFSET	`0,3`
	FORMULA	`G.f.: (1-3x+2x^3)/(1-4x+8x^3-4x^4); E.g.f. : exp(x)cosh(x)cosh(sqrt(2)x); a(n)=((sqrt(2))^n+(-sqrt(2))^n+(2+sqrt(2))^n+(2-sqrt(2))^n)/4`
	CROSSREFS	`Sequence in context: A149178 A152916 A108596 this_sequence A149179 A149180 A149181` `Adjacent sequences: A088010 A088011 A088012 this_sequence A088014 A088015 A088016`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Sep 18 2003`

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Last modified November 23 10:40 EST 2009. Contains 167421 sequences.

AT&T Labs Research