Triangle of Gaussian binomial coefficients [ n,k ] for q = 20.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =21a(5) =1a(6) =1a(7) =421a(8) =421a(9) =1a(10) =1a(11) =8421a(12) =168821a(13) =8421a(14) =1a(15) =1a(16) =168421a(17) =67536821a(18) =67536821a(19) =168421a(20) =1a(21) =1a(22) =3368421a(23) =27014896821a(24) =540362104821a(25) =27014896821a(26) =3368421a(27) =1a(28) =1a(29) =67368421