The Nullstellensatz for real coherent analytic surfaces.
The number of (2,3)-sum-free subsets of {1,...,n}
The number of binomial coefficients in residue classes modulo p and .
The number of commutative semigroups of order N.
The number of crossings in a regular drawing of the complete bipartite graph.
The number of cube-full numbers in an interval
The number of curves of genus two with elliptic differentials.
The number of different lengths of irreducible factorization of a natural number in an algebraic number field
The number of elliptic curves over Q with conductor N.
The number of families of solutions of decomposable form equations
The number of irreducible factors of a polynomial, II
The number of k-ary divisors of a generalized integer
The number of k-ary, (k + 1)-free divisors of an integer.
The number of k-free and k-ary divisors of m which are prime to n.
The number of k-free divisors of an integer
The number of k-free divisors of an integer. II.
The number of k-sums of abelian groups of order k
The number of matrix fields over GF(q)
The number of minimum points of a positive quadratic form [Book]
The number of permutation binomials over where and are primes.