Generating Trees and Pattern Avoidance in Alternating Permutations
We extend earlier work of the same author to enumerate alternating permutations avoiding the permutation pattern 2143. We use a generating tree approach to construct a recursive bijection between the set A[subscript 2n](2143) of alternating permutations of length 2n avoiding 2143 and the set of sta...
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Format: | Article |
Language: | en_US |
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Electronic Journal of Combinatorics
2014
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Online Access: | http://hdl.handle.net/1721.1/89800 |