The last digit of and .
The major counting of nonintersecting lattice paths and generating functions for tableaux. (Summary).
The Markov-WZ method.
The number of binomial coefficients in residue classes modulo p and .
The number of inversions in permutations: A saddle point approach.
The number of prime factors of binomial coefficients
The Number-System of Algebra [Book]
The power of a prime that divides a generalized binomial coefficient.
The problem of kings.
The problem of the kings.
The Pythagorean Approach to Problems of Periodicity in Chemistry and Nuclear Physics
The two-parameter class of Schröder inversions
Infinite lower triangular matrices of generalized Schröder numbers are used to construct a two-parameter class of invertible sequence transformations. Their inverses are given by triangular matrices of coordination numbers. The two-parameter class of Schröder transformations is merged into a one-parameter class of stretched Riordan arrays, the left-inverses of which consist of matrices of crystal ball numbers. Schröder and inverse Schröder transforms of important sequences are calculated.
Touchard polynomials, partial Bell polynomials and polynomials of binomial type.
Truncating binomial series with symbolic summation.
Two combinatorial problems in group theory
Über eine neue asymptotische Abschätzung bei Stirlingschen Zahlen 2. Art.
Unbounded regions of infinitely logconcave sequences.
Unimodality of certain sequences connected with binomial coefficients.
Unimodality problems of multinomial coefficients and symmetric functions.
Užití kubiky při řešení jedné kombinatorické úlohy