login
Number of (undirected) Hamiltonian cycles of the graph of the n-th Johnson solid.
3

%I #8 Apr 13 2021 02:38:22

%S 4,5,7,11,16,90,6,16,30,80,240,6,30,12,52,160,268,67,225,716,3550,794,

%T 6228,44092,194620,9,96,396,361,1350,1296,6560,6520,32560,708,718,

%U 6033,45625,45856,221970,221680,1083340,1082370,8422,162301,2751301,12817980

%N Number of (undirected) Hamiltonian cycles of the graph of the n-th Johnson solid.

%H Pontus von Brömssen, <a href="/A343211/b343211.txt">Table of n, a(n) for n = 1..92</a>

%H Wikipedia, <a href="https://en.wikipedia.org/wiki/List_of_Johnson_solids">List of Johnson solids</a>

%e The gyrobifastigium (J26) has a(26) = 9 Hamiltonian cycles.

%Y Cf. A242731, A268283.

%K nonn,fini,full

%O 1,1

%A _Pontus von Brömssen_, Apr 08 2021