A163834 - OEIS

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A163834

(4^n+5)/3.

2, 3, 7, 23, 87, 343, 1367, 5463, 21847, 87383, 349527, 1398103, 5592407, 22369623, 89478487, 357913943, 1431655767, 5726623063, 22906492247, 91625968983, 366503875927, 1466015503703, 5864062014807, 23456248059223, 93824992236887, 375299968947543 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,1`
	FORMULA	`a(n) = (4^n+5)/3 = A135351(2n+1) = A140966(2n) = A153643(2n).` `a(n) = 5a(n-1)-4a(n-2). G.f.: (2-7x)/((4x-1)(x-1)).` `a(n+1)-a(n) = A000302(n).`
	CROSSREFS	`Cf. A000027, A135351, A140966, A153643.` `Sequence in context: A084710 A088173 A129739 * A002386 A000230 A133429` `Adjacent sequences: A163831 A163832 A163833 * A163835 A163836 A163837`
	KEYWORD	`nonn,easy`
	AUTHOR	`Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Aug 05 2009`
	EXTENSIONS	`Offset set to 0 by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Aug 06 2009`

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Last modified February 16 15:53 EST 2012. Contains 205931 sequences.