id:A082365 - OEIS Search Results

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A Jacobsthal number sequence.

+0
6

1, 11, 85, 683, 5461, 43691, 349525, 2796203, 22369621, 178956971, 1431655765, 11453246123, 91625968981, 733007751851, 5864062014805, 46912496118443, 375299968947541, 3002399751580331, 24019198012642645, 192153584101141163 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`A trisection of A024495. - Paul Curtz (bpcrtz(AT)free.fr), Nov 18 2007`
	FORMULA	`a(n)=48^n/3-(-1)^n/3, a(n)=J(3n+2)=A001045(3n)/3.` `a(0)=1, a(1)=11, a(n+1)=7a(n)+8*a(n-1) for n>=1 . G.f.: (1+4x)/(1-7x-8x^2) . - Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Nov 19 2007`
	CROSSREFS	`Cf. A015565, A082311.` `Sequence in context: A026783 A001240 A129180 this_sequence A012794 A014917 A080962` `Adjacent sequences: A082362 A082363 A082364 this_sequence A082366 A082367 A082368`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Apr 09 2003`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

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