id:A045693 - OEIS Search Results

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Number of binary words of length n (beginning 0) with autocorrelation function 2^(n-1)+3.

+0
1

0, 0, 1, 0, 1, 3, 6, 11, 23, 44, 91, 179, 364, 723, 1457, 2902, 5827, 11633, 23310 (list; graph; listen)

	OFFSET	`1,6`
	FORMULA	`a[ 2n-1 ] = 2 a[ 2n-2 ] + 2 a[ n ] for n >= 3; a[ 2n ] = 2 a[ 2n-1 ] +a[ n ] - a[ n+1 ] for n >= 3`
	CROSSREFS	`Sequence in context: A024506 A068033 A088052 this_sequence A051284 A001867 A000998` `Adjacent sequences: A045690 A045691 A045692 this_sequence A045694 A045695 A045696`
	KEYWORD	`nonn`
	AUTHOR	`TORSTEN.SILLKE(AT)LHSYSTEMS.COM`

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Last modified July 8 18:40 EDT 2008. Contains 141013 sequences.