A Generating Function for the Diagonal T2n, n in Triangles. - Dmitry V. Kruchinin; Vladimir V. Kruchinin (J. Integer Seq., 2015)

Unranking Small Combinations of a Large Set in Co-Lexicographic Order. - Vladimir V. Kruchinin; Yuriy V. Shablya; Dmitry V. Kruchinin; Victor Rulevskiy (Algorithms, 2022)