2280798domain: NAppears in sequencesCycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite MFS = ZSM-57 H1.5[Al1.5Si34.5O72] starting with a T7 atom.at n=18A019174Numbers k which are concatenations k = x//y such that x^2 - y^2 is a multiple of k.at n=27A162701