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how to calcualte quotient module over the steenrod algebra

A(2) is steenrod algebra generated by sq1, sq2,sq4 with Adem relations, we knew A(2) has dimension 64, how to calculate the basis like quotient algebra A(2)/A(2){sq1} and A(2)/A(2){sq1,sq2sq3} and A(2)/A(2){sq1, sq7,sq3sq7+sq4sq6} in Sage? Thanks !