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A013993
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Number of edge-disjoint paths between opposite corners of 4 X n grid.
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6
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1, 1, 16, 335, 9754, 323632, 11171466, 389866263, 13662905466, 479251547011, 16821606120516, 590415835527858, 20726430358013659, 727543012137899046, 25540208938124629118, 896540705406585866451
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,3
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REFERENCES
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rec.puzzles Dec 10 1995.
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LINKS
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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