id:A027047 - OEIS Search Results

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a(n) = Sum{T(n,k)*T(n,k+1)}, 0<=k<=2n-1, T given by A027023.

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2, 8, 50, 336, 2418, 18088, 138850, 1086016, 8617122, 69159896, 560290322, 4574820624, 37603654098, 310873702392, 2582964183874, 21556333188288, 180609299685954 (list; graph; listen)

	OFFSET	`1,1`
	CROSSREFS	`Sequence in context: A136226 A046165 A114619 this_sequence A034491 A121677 A120956` `Adjacent sequences: A027044 A027045 A027046 this_sequence A027048 A027049 A027050`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified September 5 17:15 EDT 2008. Contains 143476 sequences.

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