126429

Appears in sequences

• a(n) = T(6,n), array T given by A048505.at n=10A048511
• Number of intersection points outside the n-gon of all lines through pairs of vertices of a regular n-gon.at n=34A146213
• Number of n X 4 0..1 arrays with every element equal to 1, 2, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.at n=8A299510
• Number of polygons formed outside a regular n-gon when every pair of vertices of the n-gon are joined by an infinite line.at n=36A344311