The number of vertices formed when every pair of n points, placed at the vertices of a regular n-gon, are connected by a circle and where the points lie at the ends of the circle's diameter.

A358746

The number of vertices formed when every pair of n points, placed at the vertices of a regular n-gon, are connected by a circle and where the points lie at the ends of the circle's diameter.

Terms

    a(0) =2a(1) =6a(2) =5a(3) =55a(4) =54a(5) =252a(6) =169a(7) =747a(8) =630a(9) =1804a(10) =1381a(11) =3679a(12) =3150a(13) =6690a(14) =5553a(15) =11509a(16) =9846a(17) =18012a(18) =15241a(19) =27237a(20) =24398a(21) =39606a(22) =33577a(23) =56275a(24) =50622a(25) =77058a(26) =69693a(27) =102979a(28) =94770a(29) =135966

External references