On a Combinatorial Problem of Asmus Schmidt
Copyright policy )On a Combinatorial Problem of Asmus Schmidt
For any integer $r\ge2$, define a sequence of numbers $\{c_k^{(r)}\}_{k=0,1,\dots}$, independent of the parameter $n$, by $$ \sum_{k=0}^n{n\choose k}^r{n+k\choose k}^r =\sum_{k=0}^n{n\choose k}{n+k\choose k}c_k^{(r)}, \qquad n=0,1,2,\dots. $$ We prove that all the numbers $c_k^{(r)}$ are integers.
- University of Newcastle Australia Australia
- Lomonosov Moscow State University Russian Federation
910, Asmus Schmidt, Binomial coefficients; factorials; \(q\)-identities, Mathematics - Classical Analysis and ODEs, integers, Classical Analysis and ODEs (math.CA), FOS: Mathematics, combinatorial problem, Mathematics - Combinatorics, Combinatorics (math.CO), Combinatorial identities, bijective combinatorics, 11B65, 33C20
910, Asmus Schmidt, Binomial coefficients; factorials; \(q\)-identities, Mathematics - Classical Analysis and ODEs, integers, Classical Analysis and ODEs (math.CA), FOS: Mathematics, combinatorial problem, Mathematics - Combinatorics, Combinatorics (math.CO), Combinatorial identities, bijective combinatorics, 11B65, 33C20
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