This is documentation for Mathematica 7, which was
based on an earlier version of the Wolfram Language.
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Combinatorial Functions
Factorial (!) factorial function (total arrangements of n objects)
Subfactorial number of derangements of n objects, leaving none unchanged
FactorialPower factorial power
Hyperfactorial hyperfactorial function
Factorial2 (!!) double factorial
Binomial binomial coefficients
Multinomial multinomial coefficients
CatalanNumber Catalan numbers
StirlingS1, StirlingS2 Stirling numbers
PartitionsP number of partitions of an integer
BellB Bell numbers
FrobeniusNumber Frobenius number for a list
FiniteGroupCount, FiniteAbelianGroupCount numbers of groups of given order