The power of a prime that divides a generalized binomial coefficient.
An algorithmic proof theory for hypergeometric (ordinary and "q") multisum/integral indentities.
Regularly spaced subsums of integer partitions
The number-theoretic content of the Jacobi triple product identity.
Identically distributed pairs of partition statistics.
Accelerated series for universal constants, by the WZ method.
The Redheffer matrix of a partially ordered set.
The problem of the kings.
When are subset sums equidistributed modulo ?
A high-tech proof of the Mills-Robbins-Rumsey determinant formula.
When can the sum of th of the binomial coefficients have closed form.
Counting nondecreasing integer sequences that Lie below a barrier.
A discontinuity in the distribution of fixed point sums.
Longest increasing subsequences in pattern-restricted permutations.
Permutation patterns and continued fractions.
Lattice walks in and permutations with no long ascending subsequences.
A note on partitions and compositions defined by inequalities.
BG-ranks and 2-cores.
Irreducible compositions and the first return to the origin of a random walk.
Acyclic digraphs and eigenvalues of -matrices.
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