OFFSET
0,3
LINKS
Ferenc Balogh, A generalization of Gessel's generating function to enumerate words with double or triple occurrences in each letter and without increasing subsequences of a given length, preprint arXiv:1505.01389, 2015.
Shalosh B. Ekhad and Doron Zeilberger, The Generating Functions Enumerating 12..d-Avoiding Words with r occurrences of each of 1,2, ..., n are D-finite for all d and all r, 2014
Nathaniel Shar, Experimental methods in permutation patterns and bijective proof, PhD Dissertation, Mathematics Department, Rutgers University, May 2016.
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Jan 06 2016
EXTENSIONS
More terms from Alois P. Heinz, Jan 14 2016
STATUS
approved