Determinants of the equally spaced angles sines to tangents matrices.

Terms

a(0) =1a(1) =-2a(2) =-4a(3) =4a(4) =48a(5) =-160a(6) =-32a(7) =2176a(8) =6912a(9) =0a(10) =-273408a(11) =41984a(12) =19456a(13) =-37027840a(14) =-141705216a(15) =0a(16) =3833856a(17) =-34359869440a(18) =0a(21) =-47710208a(24) =909115392000a(26) =0a(27) =0