Alternative definition of factorial
89413
Can there be only one extension to the factorial?
114737
Sum of reciprocals of primes factorial: $\sum_{p\;\text{prime}}\frac{1}{p!}$
84121
Double factorial series
9414
Is There a Natural Way to Extend Repeated Exponentiation Beyond Integers?
9126
How many bits are in factorial?
91538
What are the rules for factorial manipulation?
100566
Ramanujan's approximation to factorial
4735
Proof for alternative definition of the derivative
39957
Product of binomial coefficient as a basis
148393
Intuition to the Resolution of a fractional factorial design
67001
Factorizing polynomials over fields other than $\mathbb{C}$
63314
Triangular Factorials
7354
How to convert a factor to integer\numeric without loss of information?
149775
Is there a non-parametric equivalent of factorial MANOVA (at least 2x2)?
158114
Representing the double factorial of LaguerreL[n, 1, x]/( (n + 1) LaguerreL[n, 0, x])
133073
Evaluating series with factorial denominator (sanity check).
116776
Opposite of "infinitesimal"