Number of polygons formed when every pair of vertices of a row of n adjacent congruent rectangles are joined by an infinite line.

A344993

Number of polygons formed when every pair of vertices of a row of n adjacent congruent rectangles are joined by an infinite line.

Terms

    a(0) =0a(1) =4a(2) =20a(3) =68a(4) =168a(5) =368a(6) =676a(7) =1184a(8) =1912a(9) =2944a(10) =4292a(11) =6152a(12) =8456a(13) =11484a(14) =15164a(15) =19624a(16) =24944a(17) =31508a(18) =39076a(19) =48212a(20) =58656a(21) =70672a(22) =84284a(23) =100192a(24) =117888a(25) =138100a(26) =160580a(27) =185796a(28) =213568a(29) =245008

External references