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Coordination sequence for 1-skeleton of small stellated dodecahedron with respect to a trivalent node (a valley).
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%I #13 Jan 08 2020 19:47:41

%S 1,6,9,9,6,1

%N Coordination sequence for 1-skeleton of small stellated dodecahedron with respect to a trivalent node (a valley).

%C The coordination sequence with respect to a pentavalent node (a peak) is 1,5,10,10,5,1. Since this coordination sequence is a row of Pascal's triangle it does not have its own entry.

%D H. M. Cundy and A. P. Rollett, Mathematical Models, Oxford, 1st. ed., corrected 1957, pp. 84-85.

%H Tom Karzes, <a href="/A298808/a298808.html">Polyhedron Coordination Sequences</a>

%Y Cf. A329500, A330555.

%K nonn,fini,full

%O 0,2

%A _N. J. A. Sloane_, Jan 01 2020