A061545 - OEIS

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A061545

Minimal XR-sequences of A048200(n).

0, 2, 1, 1, 1, 2, 4, 16 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,2`
	COMMENTS	`a(5) = 1 since "xrrxrrxrxr" is the shortest only sequence reversing "ABCDE".`
	LINKS	`Table of n, a(n) for n=1..8.`
	EXAMPLE	`For n = 6 there are 2 possibilities: A048200(6) = 15. -> Two minimal XR-sequences with length 15 exist. -> "xrxrrxrxrrxrrrx" "rxrrxrxrrxrxrrx"; so a(6) = 2.`
	CROSSREFS	`Cf. A048200.` `Sequence in context: A026148 A117211 A215894 * A221131 A126886 A179272` `Adjacent sequences: A061542 A061543 A061544 * A061546 A061547 A061548`
	KEYWORD	`more,nonn`
	AUTHOR	`Naohiro Nomoto, May 16 2001`
	STATUS	`approved`

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Last modified May 22 09:19 EDT 2013. Contains 225516 sequences.