id:A016223 - OEIS Search Results

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Expansion of 1/((1-x)(1-4x)(1-7x)).

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1, 12, 105, 820, 6081, 43932, 312985, 2212740, 15576561, 109385452, 767096265, 5375266260, 37649233441, 263634112572, 1845796701945, 12922008569380, 90459786608721, 633241412753292, 4432781515242025 (list; graph; listen)

	OFFSET	`0,2`
	MAPLE	`a:=n->sum((7^(n-j)-4^(n-j))/3, j=0..n): seq(a(n), n=1..19); - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Jan 15 2007`
	CROSSREFS	`Sequence in context: A094530 A051815 A004321 this_sequence A027142 A090816 A144133` `Adjacent sequences: A016220 A016221 A016222 this_sequence A016224 A016225 A016226`
	KEYWORD	`nonn`
	AUTHOR	`njas`

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Last modified December 3 16:57 EST 2008. Contains 151279 sequences.

AT&T Labs Research