OFFSET
1,1
LINKS
Eric Weisstein's World of Mathematics, Complete Tripartite Graph
Eric Weisstein's World of Mathematics, Hamiltonian Cycle
MATHEMATICA
Table[n!^2 (n - 1)! 2^n HypergeometricPFQ[{n, (1 - n)/2, -n/2}, {1, 1}, 1], {n, 10}] (* Eric W. Weisstein, Apr 26, 2017 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Max Alekseyev, Dec 25 2013
STATUS
approved