id:A024720 - OEIS Search Results

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a(n) = (1/4)*(3 + sum of C(4k,k)) for k = 0,1,2,...,n.

+0
1

1, 2, 9, 64, 519, 4395, 38044, 334054, 2963629, 26499449, 238414581, 2155749364, 19572882981, 178326272881, 1629509263831, 14928031562011, 137059765831906, 1260847661188318, 11618870102584178, 107234108018545278 (list; graph; listen)

	OFFSET	`0,2`
	CROSSREFS	`Sequence in context: A076944 A074181 A052513 this_sequence A094100 A067297 A113882` `Adjacent sequences: A024717 A024718 A024719 this_sequence A024721 A024722 A024723`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`
	EXTENSIONS	`More terms from James A. Sellers (sellersj(AT)math.psu.edu), May 01 2000`

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Last modified September 7 15:23 EDT 2008. Contains 143483 sequences.

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