Stankova and West proved in 2002 that the patterns \(231\) and \(312\) are shape-Wilf-equivalent. Their proof was nonbijective. We give a new characterization of \(231\) and \(312\) avoiding full rook placements and use this to give a simple bijection that demonstrates the shape-Wilf-equivalence.
Published: J. Combin. Math. Combin. Comput., 2012, arXiv.