Number of vertices among all distinct circles that can be constructed from a 2 x n square grid of points using only a compass.

A359859

Number of vertices among all distinct circles that can be constructed from a 2 x n square grid of points using only a compass.

Terms

    a(0) =2a(1) =40a(2) =190a(3) =740a(4) =1824a(5) =3956a(6) =7314a(7) =12956a(8) =20684a(9) =32276a(10) =47348a(11) =68516a(12) =94550a(13) =128780a(14) =170106a(15) =222252a(16) =283418a(17) =358756a(18) =445534a(19) =550868a(20) =670358a(21) =811556a(22) =970740a(23) =1157168a(24) =1363700a(25) =1601384a(26) =1864524a(27) =2164668a(28) =2493136a(29) =2865176

External references