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A330914 Irregular table read by rows: Take a semicircular polygon with all vertices mutually connected by straight line segments, as in A333642. Then T(n,k) = number of k-sided polygons in that figure for k >= 3.

%I A330914 #8 May 02 2020 15:37:48
%S A330914 2,7,1,16,4,30,10,3,52,20,8,79,47,10,3,116,86,18,4,168,145,9,2,234,
%T A330914 212,52,12,319,312,80,17,2,430,446,96,18,2,551,616,173,28,5,730,792,
%U A330914 248,44,6,960,1035,167,25,1148,1384,422,66,20
%N A330914 Irregular table read by rows: Take a semicircular polygon with all vertices mutually connected by straight line segments, as in A333642. Then T(n,k) = number of k-sided polygons in that figure for k >= 3.
%C A330914 See A333642 for a precise definition of the polygon and images.
%e A330914 Table begins:
%e A330914 2;
%e A330914 7,1;
%e A330914 16,4;
%e A330914 30,10,3;
%e A330914 52,20,8;
%e A330914 79,47,10,3;
%e A330914 116,86,18,4;
%e A330914 168,145,9,2;
%e A330914 234,212,52,12;
%e A330914 319,312,80,17,2;
%e A330914 430,446,96,18,2;
%e A330914 551,616,173,28,5;
%e A330914 730,792,248,44,6;
%e A330914 960,1035,167,25;
%e A330914 1148,1384,422,66,20;
%e A330914 1427,1745,552,108,12;
%e A330914 1784,2154,648,120,14;
%e A330914 2179,2618,927,164,27,1
%e A330914 2652,3200,1088,244,36;
%e A330914 3237,3842,1170,218,26,3,2;
%Y A330914 Cf. A333642 (regions), A330911 (edges), A330913 (vertices), A331932, A333025, A331451.
%K A330914 nonn,more,tabf
%O A330914 1,1
%A A330914 _Scott R. Shannon_ and _N. J. A. Sloane_, May 02 2020