Permutations of alike objects
73323
Permutations when some objects are alike
85023
Permutation of n objects with restriction of adjacent pairs
122389
How can I generate a list of all possible permutations of several letters?
112188
Duplicate Permutations with Tuples
24212
proving how many permutations exist.
53312
Multiplication principle and permutation
57515
Similar matrices and field extensions
115209
Elementary formula for permutations?
20636
Algorithm for finding numerical permutation given lexicographic index
12835
How to efficiently find positions of duplicates?
75223
Generate all possible permutations (or n-tuples)
101719
Finding the n-th lexicographic permutation of a string
59087
permutations of two lists in python
122504
Factorisations of permutations
62175
A general formula for $n$ distinguishable arrangements of length $\ell$ of a sequence of a given size?
107027
Number of combinations and permutations of letters
116647
The number of different ways to choose $k$ out of $n$ unique items