444 and 512 tetrahedron grid

444=222:222=12=(12 tetractys)=78

444=(512 tetrahedron grid)=(12 tetractys)

444=(64 tetrahedron grid)=(7 tetractys)

222=141414=21:21=(64 tetrahedron grid)

78=12=dodecahedron=(star tetrahedron)