Number of polygons formed when connecting all 4n points on the perimeter of an n X n square by infinite lines.

A345459

Number of polygons formed when connecting all 4n points on the perimeter of an n X n square by infinite lines.

Terms

    a(0) =0a(1) =4a(2) =80a(3) =568a(4) =2024a(5) =6052a(6) =12144a(7) =26976a(8) =45024a(9) =76724a(10) =116840a(11) =191128a(12) =245976a(13) =388452a(14) =501888a(15) =661476a(16) =870168a(17) =1199724a(18) =1402096a(19) =1911384a(20) =2188320a(21) =2739280a(22) =3371264a(23) =4224288a(24) =4617224a(25) =5801372a(26) =6780568

External references