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A307957
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Number of planar graphs of order n with exactly one Hamiltonian cycle.
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1
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0, 0, 1, 2, 3, 12, 49, 460, 4994, 68234, 997486, 15582567, 253005521, 4250680376, 73293572869, 1293638724177
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OFFSET
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1,4
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LINKS
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Table of n, a(n) for n=1..16.
Jan Goedgebeur, Barbara Meersman, and Carol T. Zamfirescu, Graphs with few Hamiltonian Cycles, arXiv:1812.05650 [math.CO], 2018.
Eric Weisstein's World of Mathematics, Planar Graph
Eric Weisstein's World of Mathematics, Uniquely Hamiltonian Graph
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CROSSREFS
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Cf. A307956.
Sequence in context: A012312 A009243 A232864 * A307956 A358716 A002638
Adjacent sequences: A307954 A307955 A307956 * A307958 A307959 A307960
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KEYWORD
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nonn,more
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AUTHOR
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Jan Goedgebeur, May 08 2019
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STATUS
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approved
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