<abstract xmlns="http://www.w3.org/1999/xhtml"><p> We enumerate permutations avoiding 1243, 2134, and a third 4-letter pattern τ, a step toward the goal of enumerating avoiders for all triples of 4-letter patterns. The enumeration is already known for all but three patterns τ, which are treated in this paper. </p></abstract>

We enumerate permutations avoiding 1243, 2134, and a third 4-letter pattern τ, a step toward the goal of enumerating avoiders for all triples of 4-letter patterns. The enumeration is already known for all but three patterns τ, which are treated in this paper.

On permutations avoiding 1243, 2134, and another 4-letter pattern

Pure Mathematics and Applications

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

{"article-title":"On permutations avoiding 1243, 2134, and another 4-letter pattern"}

We enumerate permutations avoiding 1243, 2134, and a third 4-letter pattern τ, a step toward the goal of enumerating avoiders for all triples of 4-letter...

On permutations avoiding 1243, 2134, and another 4-letter pattern

Published Online: Jul 14, 2017

Page range: 11 - 21

Received: Sep 14, 2016

DOI: https://doi.org/10.1515/puma-2015-0019

Keywords
pattern avoidance

© 2017

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

On permutations avoiding 1243, 2134, and another 4-letter pattern

Published Online: Jul 14, 2017

Page range: 11 - 21

Received: Sep 14, 2016

DOI: https://doi.org/10.1515/puma-2015-0019

Keywordspattern avoidance

© 2017

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
pattern avoidance