id:A026019 - OEIS Search Results

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C(3n,n) - C(3n,n-3).

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1, 3, 15, 83, 483, 2898, 17748, 110295, 692967, 4390815, 28009215, 179652564, 1157534420, 7486680048, 48579667704, 316107403839, 2061920664351, 13478362911825, 88272020923485, 579081767982795, 3804622827123195 (list; graph; listen)

	OFFSET	`0,2`
	CROSSREFS	`a(n) = T(3n,n), where T is the array defined in A026009.` `Sequence in context: A014276 A006964 A052451 this_sequence A118356 A074552 A115910` `Adjacent sequences: A026016 A026017 A026018 this_sequence A026020 A026021 A026022`
	KEYWORD	`nonn,easy`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`
	EXTENSIONS	`More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 17 2005`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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