A131575 - OEIS

This site is supported by donations to The OEIS Foundation.

A131575

First differences of A131572.

1, 1, 0, 2, 0, 4, 0, 8, 0, 16, 0, 32, 0, 64, 0, 128, 0, 256, 0, 512, 0, 1024, 0, 2048, 0, 4096, 0, 8192, 0, 16384, 0, 32768, 0, 65536, 0, 131072, 0, 262144, 0, 524288, 0, 1048576, 0, 2097152, 0, 4194304, 0, 8388608, 0 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,4`
	FORMULA	`a(n)=A131572(n+1)-A131572(n).` `a(n)=A077957(n-1), n>0.` `G.f.:(1+x-2x^2)/(1-2x^2)(From DELEHAM Philippe Oct 01 2011)`
	CROSSREFS	`Sequence in context: A144775 A046666 A176296 * A077957 A077966 A021102` `Adjacent sequences: A131572 A131573 A131574 * A131576 A131577 A131578`
	KEYWORD	`nonn,easy`
	AUTHOR	`Paul Curtz (bpcrtz(AT)free.fr), Aug 28 2007`
	EXTENSIONS	`Edited by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 16 2008` `More terms from DELEHAM Philippe,Oct 01 2011`

Content is available under The OEIS End-User License Agreement .

Last modified February 14 23:53 EST 2012. Contains 205689 sequences.