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A159867
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Number of 2-sided n-triangular polyedges.
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5
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1, 3, 12, 60, 375, 2613, 19074, 143660, 1101860, 8562292, 67206242, 531804577, 4236708679
(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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Eric Weisstein's World of Mathematics, Polyedge
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CROSSREFS
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KEYWORD
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nonn,hard,more
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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