β
½¬25N4
β
½¬25N5
β
½¬25N6
β
½¬25N7
β
½¬25N8
β
½¬25N9
β
½¬25N10
β
½¬25N11
β
½¬25N12
β
½¬26N1
β
½¬26N2
β
½¬26N3