A127968 - OEIS

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A127968

F(n+1)+(1-(-1)^n)/2, where F() + Fibonacci numbers A000045.

1, 2, 2, 4, 5, 9, 13, 22, 34, 56, 89, 145, 233, 378, 610, 988, 1597, 2585, 4181, 6766, 10946, 17712, 28657, 46369, 75025, 121394, 196418, 317812, 514229, 832041, 1346269, 2178310, 3524578 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	COMMENTS	`Row sums of A127967.` `The sequence beginning 1,1,2,2,4,... with g.f. x/(1-x-x^2)+1/(1-x^2) has general term a(n)=F(n)+(1+(-1)^n)/2.`
	FORMULA	`G.f.: 1/(1-x-x^2)+x/(1-x^2)=(1+x-2x^2-x^3)/(1-x-2x^2+x^3+x^4)`
	CROSSREFS	`Sequence in context: A050192 A191786 A007147 * A188541 A037026 A116651` `Adjacent sequences: A127965 A127966 A127967 * A127969 A127970 A127971`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Feb 09 2007`

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Last modified February 17 04:58 EST 2012. Contains 205985 sequences.