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math.CO2017
Enumeration of words that contain the pattern 123 exactly once
Mingjia Yang
Enumeration problems related to words avoiding patterns as well as permutations that contain the pattern exactly once have been studied in great detail. However, the problem…
math.HO2017
Automated Proofs of Many Conjectured Recurrences in the OEIS made by R.J. Mathar
Shalosh B. Ekhad, Mingjia Yang, Doron Zeilberger
The On-Line Encyclopedia Of Integer Sequences , that wonderful resource that most combinatorialists, and many other mathematicians and scientists, use at least once a day, is a tre…
math.CO2017
Counting Permutations that Avoid Many Patterns
Yonah Biers-Ariel, Haripriya Chakraborty, John Chiarelli +8
This paper presents a collection of experimental results regarding permutation pattern avoidance, focusing on cases where there are "many" patterns to be avoided.