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Note that there may be other vertices in the Galebach list of u-uniform tilings with u <= 6 that have this same coordination sequence. See the Galebach link for the complete list of A-numbers for all these tilings.
Table of n, a(n) for n=0..49.
Brian Galebach, k-uniform tilings (k <= 6) and their A-numbers
Sequence in context: A255060 A047538 A074231 * A289631 A076680 A235623
Adjacent sequences: A310935 A310936 A310937 * A310939 A310940 A310941
Brian Galebach and N. J. A. Sloane, Jun 18 2018