id:A025268 - OEIS Search Results

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a(n) = a(1)*a(n-1) + a(2)*a(n-2) + ...+ a(n-1)*a(1) for n >= 5.

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1, 1, 1, 1, 4, 11, 32, 95, 284, 860, 2630, 8115, 25242, 79080, 249342, 790719, 2520546, 8072216, 25961150, 83814536, 271538192, 882527618, 2876712308, 9402284815, 30806948110, 101172278362, 332965892290, 1097990333320, 3627433618396 (list; graph; listen)

	OFFSET	`1,5`
	CROSSREFS	`Sequence in context: A034754 A038747 A052545 this_sequence A034745 A099159 A116394` `Adjacent sequences: A025265 A025266 A025267 this_sequence A025269 A025270 A025271`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified July 26 23:19 EDT 2008. Contains 142293 sequences.

AT&T Labs Research