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A298038 Coordination sequence of Dual(4.6.12) tiling with respect to a hexavalent node. 22
1, 6, 24, 18, 48, 30, 72, 42 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Conjecture: For n>0, a(n)=12n if n even, otherwise 6n.

LINKS

Table of n, a(n) for n=0..7.

N. J. A. Sloane, Illustration of initial terms (shows one 60-degree sector of tiling)

N. J. A. Sloane, Overview of coordination sequences of Laves tilings [Fig. 2.7.1 of Gr├╝nbaum-Shephard 1987 with A-numbers added and in some cases the name in the RCSR database]

CROSSREFS

Cf. A072154, A298039 (partial sums), A298036 (12-valent node), A298040 (tetravalent node).

List of coordination sequences for Laves tilings (or duals of uniform planar nets): [3,3,3,3,3.3] = A008486; [3.3.3.3.6] = A298014, A298015, A298016; [3.3.3.4.4] = A298022, A298024; [3.3.4.3.4] = A008574, A296368; [3.6.3.6] = A298026, A298028; [3.4.6.4] = A298029, A298031, A298033; [3.12.12] = A019557, A298035; [4.4.4.4] = A008574; [4.6.12] = A298036, A298038, A298040; [4.8.8] = A022144, A234275; [6.6.6] = A008458.

Sequence in context: A029592 A112034 A280589 * A223751 A228745 A049319

Adjacent sequences:  A298035 A298036 A298037 * A298039 A298040 A298041

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Jan 22 2018

STATUS

approved

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Last modified March 18 22:11 EDT 2019. Contains 321305 sequences. (Running on oeis4.)