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A238118
Number of continuations with reflective symmetry arising in matrix method for enumerating Hamiltonian cycles on 2n X 2n grid.
3
1, 6, 20, 101, 327, 1560, 5333, 24727, 88422, 403552
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OFFSET
1,2
LINKS
Table of n, a(n) for n=1..10.
Ed Wynn,
Enumeration of nonisomorphic Hamiltonian cycles on square grid graphs
, arXiv preprint arXiv:1402.0545 [math.CO], 2014.
CROSSREFS
Cf.
A003763
,
A143246
,
A209077
,
A222065
,
A238115
,
A238116
,
A238117
.
Sequence in context:
A191424
A333048
A200538
*
A211953
A266846
A207819
Adjacent sequences:
A238115
A238116
A238117
*
A238119
A238120
A238121
KEYWORD
nonn
,
hard
,
more
AUTHOR
N. J. A. Sloane
, Mar 05 2014
STATUS
approved
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Last modified August 7 03:39 EDT 2024. Contains 375008 sequences. (Running on oeis4.)