id:A124750 - OEIS Search Results

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Expansion of (1+x+x^2)/(1-x^3+x^4).

+0
2

1, 1, 1, 1, 0, 0, 0, -1, 0, 0, -1, 1, 0, -1, 2, -1, -1, 3, -3, 0, 4, -6, 3, 4, -10, 9, 1, -14, 19, -8, -15, 33, -27, -7, 48, -60, 20, 55, -108, 80, 35, -163, 188, -45, -198, 351, -233, -153, 549, -584, 80, 702, -1133, 664, 622, -1835, 1797, -42, -2457, 3632, -1839 (list; graph; listen)

	OFFSET	`0,15`
	COMMENT	`Row sums of number triangle A124749.`
	FORMULA	`a(n)=sum{k=0..n, C(floor(k/3),n-k)*(-1)^(n-k)}`
	CROSSREFS	`Adjacent sequences: A124747 A124748 A124749 this_sequence A124751 A124752 A124753` `Sequence in context: A127514 A078802 A108482 this_sequence A136458 A048805 A129571`
	KEYWORD	`easy,sign`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Nov 06 2006`

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Last modified October 7 08:31 EDT 2008. Contains 144667 sequences.

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