login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A222199 Number of Hamiltonian cycles in the graph C_n X C_n. 7
48, 1344, 23580, 3273360, 257165468, 171785923808, 61997157648756, 196554899918485160 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,1

COMMENTS

C_n X C_n is also known as the (n,n)-torus grid graph.

LINKS

Table of n, a(n) for n=3..10.

Artem M. Karavaev, Hamilton Cycles

Eric Weisstein's World of Mathematics, Hamiltonian Cycle

Eric Weisstein's World of Mathematics, Torus Grid Graph

CROSSREFS

Cf. A270273, A003763, A222197, A268838, A222198, A193153, A270247.

Sequence in context: A165283 A141407 A004341 * A288459 A173155 A174113

Adjacent sequences:  A222196 A222197 A222198 * A222200 A222201 A222202

KEYWORD

nonn,hard,more

AUTHOR

N. J. A. Sloane, Feb 14 2013

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified September 19 08:05 EDT 2021. Contains 347556 sequences. (Running on oeis4.)