cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A288181 Occurrence counts of chambers with maximum number of vertices in the chamber complex of an n X m lattice polygon as described in A288177, written as triangle T(n,m), n >= 1, 1 <= m <= n.

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%I A288181 #13 Jun 08 2017 18:48:42
%S A288181 4,2,8,14,54,168
%N A288181 Occurrence counts of chambers with maximum number of vertices in the chamber complex of an n X m lattice polygon as described in A288177, written as triangle T(n,m), n >= 1, 1 <= m <= n.
%H A288181 Hugo Pfoertner, <a href="/A288181/a288181.pdf">Chamber complex of 5 X 5 lattice polygon.</a> Illustration.
%H A288181 Hugo Pfoertner, <a href="/A288181/a288181_1.pdf">Chamber complex of 7 X 5 lattice polygon.</a> Illustration.
%H A288181 Hugo Pfoertner, <a href="/A288181/a288181_2.pdf">Chamber complex of 9 X 5 lattice polygon.</a> Illustration.
%e A288181 The chamber complex of the 5 X 5 lattice polygon has 16 chambers of size 6, so T(5,5)=16, taken from illustration on Pfetsch and Ziegler web page, see link in A288177.
%Y A288181 Cf. A288177, A288187.
%K A288181 nonn,tabl,more
%O A288181 1,1
%A A288181 _Hugo Pfoertner_, Jun 06 2017