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

A345649

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

Terms

    a(0) =0a(1) =5a(2) =61a(3) =465a(4) =1585a(5) =5257a(6) =9749a(7) =24025a(8) =38381a(9) =67177a(10) =100889a(11) =176005a(12) =210033a(13) =360877a(14) =450349a(15) =589581a(16) =779541a(17) =1127509a(18) =1251805a(19) =1806061a(20) =1970129a(21) =2504401a(22) =3116945a(23) =4017701a(24) =4163753a(25) =5433657a(26) =6335589

External references