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Closed formulas are known for $S(k,0;n)$, the number of standard Youngtableaux of size $n$ and with at most $k$ parts, where $1\le k\le 5$. Here westudy the analogue problem for $S(k,\ell;n)$, the number of standard Youngtableaux of size $n$ which are contained in the $(k,\ell)$ hook. We deduce someformulas for the cases $k+\ell\le 4$.

Identities for the number of standard Young tableaux in some $(k,\ell)$ hooks