Abstract
We consider pattern avoidance in a subset of words on called double lists. We enumerate double lists avoiding any permutation pattern of length at most 4 and completely determine the corresponding Wilf classes.
Citation
Charles Cratty. Samuel Erickson. Frehiwet Negassi. Lara Pudwell. "Pattern avoidance in double lists." Involve 10 (3) 379 - 398, 2017. https://doi.org/10.2140/involve.2017.10.379
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