OFFSET
0,7
COMMENTS
By "2*n-sided polygons" we mean the polygons that can be drawn by connecting 2*n equally spaced points on a circle.
T(0,0)=0 and T(0,1)=1 by convention.
The sequence is limited to even-sided polygons, since all odd-sided polygons have no side passing through the center.
LINKS
Ludovic Schwob, Table of n, a(n) for n = 0..5150
EXAMPLE
Triangle begins:
0;
0, 1;
1, 0, 1;
4, 3, 3, 2;
70, 60, 54, 12, 6;
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Ludovic Schwob, Nov 09 2022
STATUS
approved