id:A094286 - OEIS Search Results

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Number of (s(0), s(1), ..., s(n)) such that 0 < s(i) < 6 and |s(i) - s(i-1)| <= 1 for i = 1,2,....,n, s(0) = 1, s(n) = 1.

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1, 2, 4, 9, 21, 51, 127, 323, 835, 2187, 5787, 15435, 41419, 111659, 302059, 819243, 2226219, 6058155, 16503211, 44991659, 122727595, 334914219, 914235051, 2496201387, 6816678571, 18617371307, 50851322539, 138903833259 (list; graph; listen)

	OFFSET	`1,2`
	FORMULA	`a(n)=(1/12)(4 + 32^n + (1-Sqrt(3))^n + (1+Sqrt(3))^n)`
	CROSSREFS	`Adjacent sequences: A094283 A094284 A094285 this_sequence A094287 A094288 A094289` `Sequence in context: A048285 A051529 A005207 this_sequence A094287 A094288 A086246`
	KEYWORD	`easy,nonn`
	AUTHOR	`Herbert Kociemba (kociemba(AT)t-online.de), Jun 02 2004`

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Last modified October 13 09:05 EDT 2008. Contains 145008 sequences.

AT&T Labs Research