Determinant of the n X n matrix M_n(i,j) = C(i+j,i) (mod 3).

Terms

a(0) =1a(1) =2a(2) =0a(3) =-2a(4) =2a(5) =0a(6) =-8a(7) =-16a(8) =0a(9) =16a(10) =-16a(11) =0a(12) =16a(13) =32a(14) =0a(15) =-32a(16) =-16a(17) =0a(18) =64a(19) =128a(20) =0a(21) =-512a(22) =2048a(23) =0a(24) =-8192a(25) =8192a(26) =0a(27) =-8192a(28) =8192a(29) =0