id:A117451 - OEIS Search Results

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Expansion of (1-x+x^2+x^5)/((1-x)(1-x^5)).

+0
3

1, 0, 1, 1, 1, 3, 2, 3, 3, 3, 5, 4, 5, 5, 5, 7, 6, 7, 7, 7, 9, 8, 9, 9, 9, 11, 10, 11, 11, 11, 13, 12, 13, 13, 13, 15, 14, 15, 15, 15, 17, 16, 17, 17, 17, 19, 18, 19, 19, 19, 21, 20, 21, 21, 21, 23, 22, 23, 23, 23, 25, 24, 25, 25, 25, 27, 26, 27, 27, 27, 29, 28, 29, 29, 29, 31, 30, 31 (list; graph; listen)

	OFFSET	`0,6`
	COMMENT	`Partial sums are A117450. Partial sums of A117452.`
	FORMULA	`a(n)=a(n-1)+a(n-5)-a(n-6); a(n)=-1+(1/2+sqrt(5)/10)cos(4pin/5)-sqrt(1/50-sqrt(5)/250)sin(4pin/5) +(1/2-sqrt(5)/10)cos(2pin/5)+sqrt(1/50+sqrt(5)/250)sin(2pi*n/5)+(2n+5)/5.`
	CROSSREFS	`Sequence in context: A098726 A065801 A086920 this_sequence A130970 A144733 A091460` `Adjacent sequences: A117448 A117449 A117450 this_sequence A117452 A117453 A117454`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Mar 16 2006`

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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.

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