User blog comment:Googleaarex/Bashicu Matrix System Analysis (Part 1)/@comment-27516045-20170725132813/@comment-5029411-20170725175631

I found BM2 is stronger, $$\psi(\Omega_{\omega}\Omega+\Omega_{\omega})$$ is (0,0,0)(0,0,0)(1,1,1)(2,1,0)(1,1,0)(2,2,1)(3,1,0)(2,2,1), not (1,1,1)(2,1,0)(1,1,1).