Árendás P, Császár AG. Comment on "Wigner numbers" [J. Chem. Phys. 151, 244122 (2019)].
J Chem Phys 2021;
154:087101. [PMID:
33639758 DOI:
10.1063/5.0040954]
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Abstract
An alternative combinatorial expression is presented for the Wigner numbers Wm,n J that leads to a generating function and to several new identities. An extended class of Wigner numbers, Wigner numbers of the ℓth order, Wm,n J,ℓ, is also introduced.
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