05A05  Combinatorial choice problems (subsets, representatives, permutations)


05A10  Factorials, binomial coefficients, combinatorial functions [See also 11B65, 33Cxx]


05A15  Exact enumeration problems, generating functions [See also 33Cxx, 33Dxx]


05A16  Asymptotic enumeration


05A17  Partitions of integers [See also 11P81, 11P82, 11P83]


05A18  Partitions of sets


05A19  Combinatorial identities


05A20  Combinatorial inequalities


05A30  $q$calculus and related topics [See also 03Dxx]


05A40  Umbral calculus


05A99  None of the above, but in this section

