- Horst Alzer, Helmut Prodinger. Identities and Inequalities for Sums Involving Binomial Coefficients. Integers, 20, 2020.
- Emily Gullerud, Aba Mbirika. An Euler Phi Function for the Eisenstein Integers and Some Applications. Integers, 20, 2020.
- David J. Grynkiewicz, Chunlin Wang, Kevin Zhao. The Structure of a Sequence With Prescribed Zero-sum Subsequences. Integers, 20, 2020.
- James Propp. The Combinatorics of Frieze Patterns and Markoff Numbers. Integers, 20, 2020.
- Hùng Viêt Chu. Sets of Cardinality 6 Are Not Sum-dominant. Integers, 20, 2020.
- Jorge Flórez, Cihan Karabulut, Elkin Quintero Vanegas. The Distribution of the Generalized Greatest Common Divisor and Visibility of Lattice Points. Integers, 20, 2020.
- Takashi Agoh. On Bivariate and Trivariate Miki-type Identities for Bernoulli Polynomials. Integers, 20, 2020.
- Michael Fisher 0002, Neil A. McKay, Richard J. Nowakowski, Paul Ottaway, Carlos Pereira dos Santos. Atomic Weight Calculus of Spindly Games. Integers, 20, 2020.
- Walter Bridges. Partition Inequalities and Applications to Sum-Product Conjectures of Kanade-Russell. Integers, 20, 2020.
- José Manuel Rodríguez Caballero. Jordan's Expansion of the Reciprocal of Theta Functions and 2-densely Divisible Numbers. Integers, 20, 2020.