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A241229
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Number of acute isosceles triangles on a centered hexagonal grid of size n.
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2
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0, 8, 144, 768, 2558, 6564, 14334, 27626, 48828, 80772, 126692, 190230, 275700, 388016, 532386, 714906, 941600, 1219410, 1556184, 1959608, 2438868, 3002700
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OFFSET
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1,2
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COMMENTS
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A centered hexagonal grid of size n is a grid with A003215(n-1) points forming a hexagonal lattice.
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LINKS
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Eric Weisstein's World of Mathematics, Hex Number.
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FORMULA
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CROSSREFS
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KEYWORD
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nonn,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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