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%I #14 Nov 25 2020 03:13:10
%S 0,16,16,4,12,8,148,288,140,492,128,320,236,440,-1040,-640,2224,-948,
%T -512,-456,2392,-1464,-2868,6196,-4752,-2152,5728,-968,-3240,-460,
%U 7328,-7320,-5008,12936,-3672,-5064,-1856,13876,-8652,-15376
%N Coordination sequence for octagonal tiling is a(n)*sqrt(2) + A103909(n).
%H M. Baake, U. Grimm, P. Repetowicz and D. Joseph, <a href="https://arXiv.org/abs/cond-mat/9809110">Coordination sequences and critical points</a>, arXiv:cond-mat/9809110 [cond-mat.stat-mech], 1998; in: S. Takeuchi and T. Fujiwara, Proceedings of the 6th International Conference on Quasicrystals - Yamada Conference XLVII, World Scientific Publishing, 1998, ISBN 981-02-3343-4, pp 124-127.
%H M. Baake and U. Grimm, <a href="http://arxiv.org/abs/math-ph/0509038">Averaged coordination numbers of planar aperiodic tilings</a>, arXiv:math-ph/0509038, 2005; Philosophical Magazine 86 (2006) 567-572.
%Y Cf. A103909.
%K sign
%O 1,2
%A _Ralf Stephan_, Feb 22 2005
%E More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), Nov 03 2006
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