Linear Trees, Lattice Walks, and RNA Arrays

The leftmost column entries of RNA arrays I and II count the numbers that are related to secondary structures from molecular biology. sometimes have mutations wobble pairs. Mutations random changes occur in a structure, pairs known as non-Watson–Crick base We used topics combinatorics Riordan array theory establish connections among combinatorial objects linear trees, lattice walks, arrays. In this paper, we interesting new explicit bijections (one-to-one correspondences) involving certain subclasses structures. provide an generalized walk interpretation I. addition, with n bases k base-point where ω contain also bijection between subclass walks.