A307936 Numbers of (undirected) Hamiltonian paths in the complete tripartite graph K_{n,n,n}.
3, 120, 18792, 7547904, 6210432000, 9116955648000, 21746167511040000, 78775578609057792000, 411821286886186942464000, 2985318922218593845248000000, 29060162328471184917135360000000, 369984034079871408445744742400000000
Offset: 1
Keywords
Links
- Eric Weisstein's World of Mathematics, Complete Tripartite Graph
- Eric Weisstein's World of Mathematics, Hamiltonian Path
Crossrefs
Cf. A234633.
Formula
a(n) = A234633(n)/2.