A028445 - OEIS

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A028445

Number of cube-free words of length n on two letters.

2, 4, 6, 10, 16, 24, 36, 56, 80, 118, 174, 254, 378, 554, 802, 1168, 1716, 2502, 3650, 5324, 7754, 11320, 16502, 24054, 35058, 51144, 74540, 108664 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	LINKS	`A. E. Edlin, Cube-free words` `K. Jarhumaki and J. Shallit, Polynomial vs Exponential Growth in Repetition-Free Binary Words` `Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.`
	CROSSREFS	`Cf. A007777, A082379, A082380.` `Sequence in context: A137414 A098151 A132002 * A006305 A067247 A017985` `Adjacent sequences: A028442 A028443 A028444 * A028446 A028447 A028448`
	KEYWORD	`nonn`
	AUTHOR	`Anne Edlin (anne(AT)euclid.math.temple.edu)`

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Last modified February 13 08:12 EST 2012. Contains 205451 sequences.