A103908 - OEIS

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A103908

Coordination sequence for octagonal tiling is a(n)*sqrt(2) + A103909(n).

0, 16, 16, 4, 12, 8, 148, 288, 140, 492, 128, 320, 236, 440, -1040, -640, 2224, -948, -512, -456, 2392, -1464, -2868, 6196, -4752, -2152, 5728, -968, -3240, -460, 7328, -7320, -5008, 12936, -3672, -5064, -1856, 13876, -8652, -15376 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	LINKS	`M. Baake, U. Grimm, P. Repetowicz and D. Joseph, Coordination sequences and critical points` `M. Baake and U. Grimm, Averaged coordination numbers of planar aperiodic tilings. Philosophical Magazine 86 (2006) 567-572 [math-ph/0509038]`
	CROSSREFS	`Sequence in context: A023458 A070576 A173778 * A192632 A010855 A040241` `Adjacent sequences: A103905 A103906 A103907 * A103909 A103910 A103911`
	KEYWORD	`sign`
	AUTHOR	`Ralf Stephan, Feb 22 2005`
	EXTENSIONS	`More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), Nov 03 2006`

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Last modified February 15 23:53 EST 2012. Contains 205860 sequences.