

A299028


Number of vertices in the iterated clique graphs of the 1skeleton of Plato's icosahedron.


1




OFFSET

0,1


COMMENTS

It is known that the sequence of orders of the iterated clique graphs of the icosahedron goes to infinity.


LINKS

Table of n, a(n) for n=0..4.
Miguel A. Pizaña, The icosahedron is clique divergent, Discrete Mathematics, 262 (Feb. 2003), pp. 229239.
YAGS, YAGS  Yet Another Graph System


EXAMPLE

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.


PROG

(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.


CROSSREFS

Cf. A299030, A063723, A053016.
Sequence in context: A269453 A082800 A026041 * A082296 A187766 A260905
Adjacent sequences: A299025 A299026 A299027 * A299029 A299030 A299031


KEYWORD

nonn,more


AUTHOR

José Hernández, Feb 01 2018


STATUS

approved



