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Martin Aigner introduced Catalan-like numbers as elements of the first columnof admissible matrices and studied Hankel determinants of their forward shifts.In this paper we collect some properties of the Hankel determinants of theother columns which are suggested by computer experiments. By prepending zerorows to admissible matrices we also consider Hankel determinants of backwardshifts.

Some results and conjectures about Hankel determinants of sequences which are related to Catalan-like numbers