I got bored again at school:1

function generatestairs(x,y,t)
    xg = ""
    yg = ""
    xr=x
    yy=0
    while yy <= y do
        for h=1,xr do
            xg = xg.."#"
        end
        for i=1,t do
            print(xg)
        end
        x=x+(math.floor(x/2))
        yy=yy+1

    end
end

generatestairs(9,4,2)