id:A078010 - OEIS Search Results

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

+0
2

1, 0, 1, 3, 4, 9, 19, 36, 73, 147, 292, 585, 1171, 2340, 4681, 9363, 18724, 37449, 74899, 149796, 299593, 599187, 1198372, 2396745, 4793491, 9586980, 19173961, 38347923, 76695844, 153391689, 306783379, 613566756, 1227133513, 2454267027, 4908534052 (list; graph; listen)

	OFFSET	`0,4`
	FORMULA	`a(0)=1, a(1)=0, a(2)=1, a(n)=a(n-1)+a(n-2)+2*a(n-3) for n>2 . - Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Sep 19 2006` `a(n)+a(n+1)=A122552(n+1) . - Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Sep 25 2006`
	CROSSREFS	`Sequence in context: A003611 A103295 A028344 this_sequence A110810 A049978 A092763` `Adjacent sequences: A078007 A078008 A078009 this_sequence A078011 A078012 A078013`
	KEYWORD	`nonn`
	AUTHOR	`njas, Nov 17 2002`

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Last modified July 24 12:00 EDT 2008. Contains 142294 sequences.

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