Triangle of (Gaussian) q-binomial coefficients for q=-20.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =-19a(5) =1a(6) =1a(7) =381a(8) =381a(9) =1a(10) =1a(11) =-7619a(12) =152781a(13) =-7619a(14) =1a(15) =1a(16) =152381a(17) =61104781a(18) =61104781a(19) =152381a(20) =1a(21) =1a(22) =-3047619a(23) =24442064781a(24) =-488777143219a(25) =24442064781a(26) =-3047619a(27) =1a(28) =1a(29) =60952381