Callan, David

• The Electronic Journal of Combinatorics Volume 15 (2008) - Research Papers
  Circular Digraph Walks, $k$-Balanced Strings, Lattice Paths and Chebychev Polynomials
  Abstract  PDF
• The Electronic Journal of Combinatorics Volume 14 (2007) - Research Papers
  A Bijection on Dyck Paths and its Cycle Structure
  Abstract  PDF
• The Electronic Journal of Combinatorics Volume 11, Issue 1 (2004) - Research Papers
  A Uniformly Distributed Statistic on a Class of Lattice Paths
  Abstract  PDF
• The Electronic Journal of Combinatorics Volume 22, Issue 2 (2015) - Papers
  Some Combinatorial Arrays Related to the Lotka-Volterra System
  Abstract  PDF  source file of the revised version  Latex source file  Official source
• The Electronic Journal of Combinatorics Volume 30, Issue 3 (2023) - Papers
  Inversion Sequences Avoiding a Triple of Patterns of 3 Letters
  Abstract  PDF
• The Electronic Journal of Combinatorics Volume 32, Issue 1 (2025) - Papers
  Ascent Sequences Avoiding a Triple of Length-3 Patterns
  Abstract  PDF