N. Cameron and E. Sullivan. Peakless motzkin paths with marked level steps at fixed height. Discrete Mathematics, 344(112154), 2021.
E. Sullivan. Linear chord diagrams with long chords. The Electronic Journal of Combinatorics, 24(4), 2017.
N. Cameron and E. Sullivan. Peakless motzkin paths with marked level steps at fixed height. Discrete Mathematics, 344(112154), 2021.
E. Sullivan. Linear chord diagrams with long chords. The Electronic Journal of Combinatorics, 24(4), 2017.