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A307924 Number of (undirected) Hamiltonian cycles in the complete tripartite graph K_{n,n,n}. 0
1, 16, 1584, 463104, 299289600, 361552896000, 732443959296000, 2305449150971904000, 10654390419268829184000, 69202145783548005580800000, 610152377325314475294720000000, 7098963015274747190071787520000000, 106459726394067298796772293345280000000, 2017443502989317777418537171765166080000000 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
Eric Weisstein's World of Mathematics, Complete Tripartite Graph
Eric Weisstein's World of Mathematics, Hamiltonian Cycle
FORMULA
a(n) = A234365(n)/2.
CROSSREFS
Cf. A234365.
Sequence in context: A071900 A321247 A145406 * A263387 A264199 A160306
KEYWORD
nonn
AUTHOR
Eric W. Weisstein, May 06 2019
STATUS
approved

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Last modified March 19 02:55 EDT 2024. Contains 370952 sequences. (Running on oeis4.)