Problem 10791. - Antal Fekete (Am. Math. Mon., 2000)

Problem 10805. - Antal Fekete (Am. Math. Mon., 2000)

Squared Series Yielding Integers: 10791. - Antal Fekete; Gary Martin (Am. Math. Mon., 2001)

Stirling and Bell and Binomial, Oh My!: 10805. - Antal Fekete; Johann Cigler (Am. Math. Mon., 2002)