A288181 - OEIS

%I #13 Jun 08 2017 18:48:42

%S 4,2,8,14,54,168

%N 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 Hugo Pfoertner, <a href="/A288181/a288181.pdf">Chamber complex of 5 X 5 lattice polygon.</a> Illustration.

%H Hugo Pfoertner, <a href="/A288181/a288181_1.pdf">Chamber complex of 7 X 5 lattice polygon.</a> Illustration.

%H Hugo Pfoertner, <a href="/A288181/a288181_2.pdf">Chamber complex of 9 X 5 lattice polygon.</a> Illustration.

%e 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 Cf. A288177, A288187.

%K nonn,tabl,more

%O 1,1

%A _Hugo Pfoertner_, Jun 06 2017