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A241227
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Number of scalene triangles on a centered hexagonal grid of size n.
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3
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0, 12, 648, 6084, 30444, 107376, 302916, 732024, 1576728, 3111012, 5724852, 9952620, 16509336, 26321160, 40567872, 60724104, 88605480, 126413772, 176788476, 242874756, 328359624, 437553360
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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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