id:A074450 - OEIS Search Results

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Let x = RootOf( z^2+z+1 ) and y = 1+x. Number of 4-ary Lyndon words of length n over GF(4) with trace 1 and subtrace x.

+0
5

0, 0, 1, 4, 12, 40, 144, 512, 1813, 6528, 23808, 87380, 322560, 1198080, 4473647 (list; graph; listen)

	OFFSET	`1,4`
	COMMENT	`Also the number of 4-ary Lyndon words of length n over GF(4) with trace 1 and subtrace y. Also the number of 4-ary Lyndon words of length n over GF(4) with trace x and subtrace 1. Also the number of 4-ary Lyndon words of length n over GF(4) with trace x and subtrace x. Also the number of 4-ary Lyndon words of length n over GF(4) with trace y and subtrace 1. Also the number of 4-ary Lyndon words of length n over GF(4) with trace y and subtrace y.`
	LINKS	`F. Ruskey, Number of 4-ary Lyndon words over GF(4) with given trace and subtrace`
	CROSSREFS	`Cf. A074446, A074447, A074448, A074449.` `Adjacent sequences: A074447 A074448 A074449 this_sequence A074451 A074452 A074453` `Sequence in context: A100320 A064649 A074032 this_sequence A028403 A002996 A076867`
	KEYWORD	`easy,nonn`
	AUTHOR	`Frank Ruskey, Nate Kube (fruskey(AT)cs.uvic.ca), Aug 23 2002`

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Last modified October 13 20:18 EDT 2008. Contains 145016 sequences.