Triangle of q-binomial coefficients for q=-9.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =-8a(5) =1a(6) =1a(7) =73a(8) =73a(9) =1a(10) =1a(11) =-656a(12) =5986a(13) =-656a(14) =1a(15) =1a(16) =5905a(17) =484210a(18) =484210a(19) =5905a(20) =1a(21) =1a(22) =-53144a(23) =39226915a(24) =-352504880a(25) =39226915a(26) =-53144a(27) =1a(28) =1a(29) =478297