Sum of interior angles in an n-sided polygon in degrees.

Terms

a(0) =180a(1) =360a(2) =540a(3) =720a(4) =900a(5) =1080a(6) =1260a(7) =1440a(8) =1620a(9) =1800a(10) =1980a(11) =2160a(12) =2340a(13) =2520a(14) =2700a(15) =2880a(16) =3060a(17) =3240a(18) =3420a(19) =3600a(20) =3780a(21) =3960a(22) =4140a(23) =4320a(24) =4500a(25) =4680a(26) =4860a(27) =5040a(28) =5220a(29) =5400