Li–Pan — ẋ=a(y−x), ẏ=40 x−xz−0.5 y, ż=xy−3z+0.2 x. Classic a=30. 40x−0.5y+0.2x fold. Distinct from pan-li.html / li-qi.html. RK4. Gold trail, cap 650. RM = settled silhouette, no animate-on.