A164415 - OEIS

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A164415

Number of binary strings of length n with no substrings equal to 0000 0001 or 1100

13, 22, 38, 65, 112, 193, 332, 572, 985, 1696, 2921, 5030, 8662, 14917, 25688, 44237, 76180, 131188, 225917, 389048, 669973, 1153750, 1986854, 3421529, 5892160, 10146793, 17473628, 30091052, 51819313, 89237200, 153673937, 264639398 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`4,1`
	LINKS	`R. H. Hardin, Table of n, a(n) for n=4..500`
	FORMULA	`Conjecture: G.f. -x^4(-13-9x-3x^2+8x^3) / ( 1-x-x^2-x^3+x^4 ). - R. J. Mathar, Nov 28 2011`
	CROSSREFS	`Sequence in context: A164421 A164493 A164509 * A164445 A164418 A164409` `Adjacent sequences: A164412 A164413 A164414 * A164416 A164417 A164418`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin Aug 14 2009`
	STATUS	`approved`

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Last modified May 19 00:49 EDT 2013. Contains 225428 sequences.