Number of vertices formed in a square by straight line segments when connecting the four corner vertices to the points dividing the sides into n equal parts.

A355949

Number of vertices formed in a square by straight line segments when connecting the four corner vertices to the points dividing the sides into n equal parts.

Terms

    a(0) =5a(1) =25a(2) =81a(3) =157a(4) =301a(5) =381a(6) =665a(7) =821a(8) =1109a(9) =1353a(10) =1825a(11) =1861a(12) =2621a(13) =2881a(14) =3285a(15) =3813a(16) =4645a(17) =4773a(18) =5873a(19) =5953a(20) =6821a(21) =7665a(22) =8761a(23) =8613a(24) =10165a(25) =10921a(26) =11777a(27) =12337a(28) =14173a(29) =13717

External references