A163536 - OEIS

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A163536

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, 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; refs; listen; history; internal format)

	OFFSET	`1,5`
	COMMENTS	`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).`
	PROG	`(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 * A113302 A196078 A180823` `Adjacent sequences: A163533 A163534 A163535 * A163537 A163538 A163539`
	KEYWORD	`nonn`
	AUTHOR	`Antti Karttunen (His-Firstname.His-Surname(AT)gmail.com), Aug 01 2009`

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Last modified February 16 08:13 EST 2012. Contains 205893 sequences.