id:A085278 - OEIS Search Results

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

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2

1, 6, 17, 38, 81, 166, 337, 678, 1361, 2726, 5457, 10918, 21841, 43686, 87377, 174758, 349521, 699046, 1398097, 2796198, 5592401, 11184806, 22369617, 44739238, 89478481, 178956966, 357913937, 715827878, 1431655761, 2863311526 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`Binomial transform is A085277.`
	FORMULA	`a(n)=16*2^n/3+(-1)^n/6-9/2.`
	CROSSREFS	`Adjacent sequences: A085275 A085276 A085277 this_sequence A085279 A085280 A085281` `Sequence in context: A023621 A000385 A004799 this_sequence A080275 A061349 A101945`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Jun 25 2003`

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Last modified October 15 09:18 EDT 2008. Contains 145015 sequences.

AT&T Labs Research