Experimenting with Weighted-counting of 321-avoiding permutations according to the number of Double Deficiencies
By Tipaluck Krityakierne, Thotsaporn "Aek" Thanatipanonda, and Doron Zeilberger
.pdf
.tex
[Not Yet Written, and maybe never will]
First Written: June 20, 2026.
We explore the weighted-counting of 321-avoiding permutations (and hopefully later on other Wilf classes) according to the number of double deficiencies
Maple package
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DD321.txt,
a Maple package to investiage Motzkin languages
Tipaluck Krityakierne's Home Page
Thotsaporn "Aek" Thanatipanonda's Home Page
Doron Zeilberger's Home Page