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A299028
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Number of vertices in the iterated clique graphs of the 1-skeleton of Plato's icosahedron.
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2
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OFFSET
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0,1
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COMMENTS
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It is known that the sequence of orders of the iterated clique graphs of the icosahedron goes to infinity.
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LINKS
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EXAMPLE
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By definition, the zeroth iterated clique graph of a graph G is equal to G itself; since the icosahedron has 12 vertices, a(0)=12.
The first iterated clique graph of the icosahedron has 20 vertices; hence, a(1)=20.
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PROG
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(YAGS) K:=CliqueGraph;; g:=Icosahedron;; kg:=K(g);; Order(kg);
# It outputs the number of vertices in the first iterated
# clique graph of the icosahedron.
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CROSSREFS
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KEYWORD
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nonn,more
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AUTHOR
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STATUS
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approved
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