60318domain: NAppears in sequencesCycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite BIK = Bikitaite Li2[Al2Si4O12].2H2O starting from a T1 atom.at n=14A019076Number of equilateral triangles bounded by the sides and diagonals of a regular 3n-gon.at n=17A238822