Enumeration of permutations avoiding a triple of 4-letter patterns is almost all done
Enumeration of permutations avoiding a triple of 4-letter patterns is almost all done is a scholarly work by Toufik Mansour, published in 2019 in ''Pure Mathematics and Applications''. The main subjects of the publication include combinatorics, mathematics, algebraic combinatorics, generating function, automata theory, multiple zeta function, algebraic number, symmetry, discrete mathematics, biological function, and enumeration. The authors find the generating function for each of the remaining 13, and it is algebraic in each case. .