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A163028
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Number of n X n binary arrays with all 1s connected and a path of 1s from the top row to the bottom row.
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3
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1, 7, 144, 9362, 2075271, 1642690309, 4741764527414, 50301538415794232, 1966097907322824101263, 283293243539676951470723543, 150432229851691149674511947484546, 294212923045987478712868787193615243838, 2117957004814862762696618942898524645283531305
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,2
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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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EXTENSIONS
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STATUS
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approved
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