19498domain: NAppears in sequencesPisot sequence E(10,18), a(n)=[ a(n-1)^2/a(n-2)+1/2 ].at n=13A014006Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite SGT = Sigma-2 [Si64O128].4R starting with a T3 atom.at n=13A019236