id:A155155 - OEIS Search Results

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a(n)=20*3^n-2=2*(10*3^n-1). A048473=1,5,17,53,161,. a(n)=10*A048473+8=A048473(n-1)+A048473(n-3).

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18, 58, 178, 538, 1618, 4858, 14578, 43738, 131218, 393658, 1080978, 3542938, 10628818, 31886458, 95659378 (list; graph; listen)

	OFFSET	`0,1`
	COMMENT	`a(n)=3a(n-1)-a(n-2)+3a(n-3)+8. See A010731=8's and A153388=8,18,48,.`
	CROSSREFS	`Sequence in context: A086540 A041634 A044975 this_sequence A048356 A027055 A056448` `Adjacent sequences: A155152 A155153 A155154 this_sequence A155156 A155157 A155158`
	KEYWORD	`nonn,uned`
	AUTHOR	`Paul Curtz (bpcrtz(AT)free.fr), Jan 21 2009`

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