id:A107904 - OEIS Search Results

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Expansion of (1+6x)/(1-12x^2).

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1, 6, 12, 72, 144, 864, 1728, 10368, 20736, 124416, 248832, 1492992, 2985984, 17915904, 35831808, 214990848, 429981696, 2579890176, 5159780352, 30958682112, 61917364224, 371504185344, 743008370688, 4458050224128 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`Fourth binomial transform is A107903.`
	FORMULA	`a(n)=((1+sqrt(3))(2sqrt(3))^n+(1-sqrt(3))(-2sqrt(3))^n)/2.`
	CROSSREFS	`Cf. A094015.` `Adjacent sequences: A107901 A107902 A107903 this_sequence A107905 A107906 A107907` `Sequence in context: A070970 A045780 A088726 this_sequence A071930 A061520 A054883`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), May 27 2005`

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Last modified October 6 12:54 EDT 2008. Contains 144667 sequences.

AT&T Labs Research