Abstract
In this paper we study the counting sequences which arise from the enumeration problems of set partitions of type B. These sequences count the total number of set partitions, the number of partitions with a given number of blocks. We thoroughly study the enumeration problem of partitions without singletons.
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Acknowledgements
The authors would like to thank the anonymous referee for carefully reading the paper and giving helpful comments and suggestions. The first author thanks for hospitality the Department of Mathematics of Universidad Nacional de Colombia, Bogotá, Colombia, where the presented work was initiated. The second author was partially supported by Universidad Nacional de Colombia, Project No. 46240.
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Mező, I., Ramírez, J.L. Set partitions and partitions without singleton blocks of type B. Period Math Hung 85, 246–263 (2022). https://doi.org/10.1007/s10998-021-00439-1
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DOI: https://doi.org/10.1007/s10998-021-00439-1