id:A024959 - OEIS Search Results

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a(n) = Sum(a(2i-1)*a(n-2i+1), i = 1,2,...,[ (n+2)/4 ]).

+0
2

2, 1, 2, 4, 8, 20, 48, 112, 264, 688, 1760, 4432, 11136, 30208, 80160, 209344, 547584, 1498752, 4052224, 10840064, 28972416, 80315136, 220124160, 597656576, 1623036928, 4522262528, 12503194624, 34330329088, 94172397568, 264205592576, 735690285056 (list; graph; listen)

	OFFSET	`4,1`
	CROSSREFS	`Sequence in context: A016013 A049903 A024739 this_sequence A029728 A135547 A146307` `Adjacent sequences: A024956 A024957 A024958 this_sequence A024960 A024961 A024962`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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

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