id:A053369 - OEIS Search Results

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Linear recursion with Catalan numbers.

+0
1

2, 9, 32, 115, 420, 1554, 5808, 21879, 82940, 316030, 1209312, 4644094, 17889032, 69089700, 267444000, 1037348415, 4030774380, 15687019590, 61137753600, 238580530650, 932105099640 (list; graph; listen)

	OFFSET	`0,1`
	REFERENCES	`A. H. Beiler, Recreations in the Theory of Numbers, Dover, N.Y., 1964, pp. 194-196.`
	FORMULA	`a(n)=(7n+2)*C(n) where C(n)=Catalan numbers (A000108).`
	CROSSREFS	`Cf. A050960.` `Sequence in context: A074084 A053152 A077644 this_sequence A076959 A003697 A006253` `Adjacent sequences: A053366 A053367 A053368 this_sequence A053370 A053371 A053372`
	KEYWORD	`easy,nonn`
	AUTHOR	`Barry E. Williams, Jan 06 2000`

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.

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