User blog comment:Wythagoras/Extension of SCG/@comment-1605058-20130809200033/@comment-1605058-20130812071513

Best I could do for CSCG(0,4) was 46, mainly because if you have subcubic tree with two vertices of valence 3, K1,4 is minor of it. So using K1,4 disallows you to use most of trees.