Number of distinct edges among all circles that can be constructed on vertices of an n-sided regular polygon, using only a compass.

A359047

Number of distinct edges among all circles that can be constructed on vertices of an n-sided regular polygon, using only a compass.

Terms

    a(0) =1a(1) =4a(2) =12a(3) =84a(4) =120a(5) =330a(6) =504a(7) =1240a(8) =1332a(9) =2850a(10) =3696a(11) =5172a(12) =7176a(13) =10906a(14) =12660a(15) =19280a(16) =22440a(17) =28494a(18) =35796a(19) =46220a(20) =52752a(21) =68662a(22) =79488a(23) =91272a(24) =111000a(25) =136838a(26) =149472a(27) =181972a(28) =204972a(29) =229650

External references