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The relative direction (0=straight ahead, 1=turn right, 2=turn left) taken by the type II Hilbert's Hamiltonian walk A163334 at the step n.

+0
6

0, 1, 1, 0, 2, 2, 0, 0, 0, 0, 2, 2, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 2, 2, 0, 1, 1, 0, 2, 2, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 2, 2, 0, 0, 0, 0, 2, 2, 0, 1, 1, 0, 2, 2, 0, 1, 1, 0, 2, 2, 0, 0, 0, 0, 2, 2, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 2, 2, 0, 0, 0, 0, 2, 2, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 2, 2, 0, 0, 0, 0, 2, 2 (list; graph; listen)

	OFFSET	`1,5`
	COMMENT	`a(9n) = a(81n) for all n.`
	LINKS	`A. Karttunen, Table of n, a(n) for n = 1..59049`
	FORMULA	`a(n) = A163241((A163534(n+1)-A163534(n)) modulo 4).`
	PROGRAM	`(Scheme:) (define (A163536 n) (A163241 (modulo (- (A163534 (1+ n)) (A163534 n)) 4)))`
	CROSSREFS	`a(n) = A014681(A163537(n)). See also A163534.` `Sequence in context: A027359 A035447 A037863 this_sequence A113302 A049800 A131018` `Adjacent sequences: A163533 A163534 A163535 this_sequence A163537 A163538 A163539`
	KEYWORD	`nonn`
	AUTHOR	`Antti Karttunen (His-Firstname.His-Surname(AT)gmail.com), Aug 01 2009`

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Last modified December 1 13:27 EST 2009. Contains 167806 sequences.

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