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%I #6 Oct 16 2022 09:03:40
%S 1,1,1,1,-20,1,1,421,421,1,1,-8840,186082,-8840,1,1,185641,82053322,
%T 82053322,185641,1,1,-3898460,36185700643,-759813761720,36185700643,
%U -3898460,1,1,81867661,15957890085103,7036671432989563
%N Triangle of (Gaussian) q-binomial coefficients for q=-21.
%t Table[QBinomial[n,m,-21],{n,0,10},{m,0,n}]//Flatten (* _Harvey P. Dale_, Oct 16 2022 *)
%K sign,tabl,easy
%O 0,5
%A _Olivier Gérard_