875007domain: NAppears in sequencesTriangle of Gaussian (or q-binomial) coefficients for q = -2.at n=49A015109Triangle of Gaussian (or q-binomial) coefficients for q = -2.at n=50A015109Gaussian binomial coefficient [ n,4 ] for q = -2.at n=5A015287Gaussian binomial coefficient [ n,5 ] for q = -2.at n=4A015305