A sixth degree product form sequence: a(n)=Product[(1 + 4*Sin[k*Pi/n]^2 + 16*Sin[k*Pi/n]^4 + 64*Sin[k*Pi/n]^6), {k, 1, Floor[(n - 1)/2]}].
A152143
A sixth degree product form sequence: a(n)=Product[(1 + 4*Sin[k*Pi/n]^2 + 16*Sin[k*Pi/n]^4 + 64*Sin[k*Pi/n]^6), {k, 1, Floor[(n - 1)/2]}].
Terms
- a(0) =1a(1) =1a(2) =1a(3) =40a(4) =15a(5) =451a(6) =160a(7) =4901a(8) =1785a(9) =55480a(10) =20295a(11) =630631a(12) =230400a(13) =7152809a(14) =2612233a(15) =81089800a(16) =29614935a(17) =919350379a(18) =335764960a(19) =10423396429a(20) =3806834625a(21) =118178205080a(22) =43161016271a(24) =489349324800
External references
- oeis: A152143