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A213813 Number of Hamiltonian cycles in P_12 X P_n. 1
0, 1, 32, 9770, 205832, 32463802, 966656134, 102283239429, 3913787773536, 328076475659033, 14746957510647992, 1076226888605605706, 53540340738182687296, 3593066312119675283778, 190433654636776931262392, 12142048779807437697982030, 669350612142203868221516908 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Anand Krishnamoorthi, Table of n, a(n) for n=1..100

Anand Krishnamoorthi, C++ program.

CROSSREFS

Cf. A180505

Sequence in context: A139294 A227603 A231035 * A241369 A004147 A212800

Adjacent sequences:  A213810 A213811 A213812 * A213814 A213815 A213816

KEYWORD

nonn

AUTHOR

Anand Krishnamoorthi, Jun 20 2012

STATUS

approved

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Last modified March 26 23:07 EDT 2019. Contains 321566 sequences. (Running on oeis4.)