3368421domain: NAppears in sequencesTriangle of Gaussian binomial coefficients [ n,k ] for q = 20.at n=22A022184Triangle of Gaussian binomial coefficients [ n,k ] for q = 20.at n=26A022184a(n) = 111111 in base n.at n=19A053700a(n) = (20^n - 1)/19.at n=6A064108