id:A155701 - OEIS Search Results

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a(n)=(4^n+8)/3.

+0
2

3, 4, 8, 24, 88, 344, 1368, 5464, 21848, 87384, 349528, 1398104, 5592408, 22369624, 89478488, 357913944, 1431655768, 5726623064, 22906492248, 91625968984, 366503875928, 1466015503704, 5864062014808, 23456248059224, 93824992236888, 375299968947544 (list; graph; listen)

	OFFSET	`0,1`
	LINKS	`Index entries for recurrences with constant coefficients`
	FORMULA	`a(n)=3+A002450(n).` `a(n)= 5a(n-1)-4a(n-2) = 4a(n-1)-8.` `a(n) = A154879(2n) = A154890(2n) .` `a(n+1)-a(n) = A000302(n).` `a(n+1)=4A047849(n) = 4A078008(2n).` `G.f.: (3-11x)/((4x-1)(x-1)). [R. J. Mathar, Jul 23 2009]`
	MAPLE	`A155701 := proc(n) (4^n+8)/3 ; end: seq(A155701(n), n=0..80) ; # R. J. Mathar, Jul 23 2009`
	CROSSREFS	`Sequence in context: A051440 A101932 A073313 this_sequence A119529 A096847 A011993` `Adjacent sequences: A155698 A155699 A155700 this_sequence A155702 A155703 A155704`
	KEYWORD	`nonn,easy`
	AUTHOR	`Paul Curtz (bpcrtz(AT)free.fr), Jan 25 2009`
	EXTENSIONS	`Edited and extended by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 23 2009`

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.

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