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Mermin, N. David; Rokhsar, Daniel S.; and Wright, David C.; Beware of 46-fold symmetry: the classification of two-dimensional quasicrystallographic lattices. Phys. Rev. Lett. 58 (1987), 2099-2101.
Table of n, a(n) for n=1..29.
Sequence in context: A080682 A182049 A038770 * A032517 A062996 A085380
Adjacent sequences: A193173 A193174 A193175 * A193177 A193178 A193179
N. J. A. Sloane, Jul 17 2011