References to A116513

Number of distinct hexagons of n points chosen from triangular lattice A_2 with sides parallel to the principal axes of that lattice. Degenerate sides (of length 1) are permitted.
1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 3, 5, 4, 5, 6, 5, 4, 7, 6, 6, 7, 6, 6, 9, 7, 7, 8, 8, 8, 10, 6, 8, 11


1 seqfan posts

Wed Dec 16 22:16:16 CET 2009    [seqfan] Re: a question about arrangements of pennies

Index of A-numbers in seqfan: by ascending order    by month    by frequency    by keyword
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