05Axx Classical combinatorial problems

• 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