J is one or more of Y, {HEAD ~ La}, Ce, Eu, Th, U, and {TAIL ~ the remaining lanthanides} and j is from 0 to 3 
J is one or more of Y , { HEAD ~ La } , Ce , Eu , Th , U , and { TAIL ~ the remaining lanthanides } and j is from 0 to 3
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH