cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A354494 Number of semi-unital quantales on n elements, up to isomorphism.

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%I A354494 #15 Jun 22 2022 23:41:13
%S A354494 1,1,6,64,939,17578,403060,11327795,440735463
%N A354494 Number of semi-unital quantales on n elements, up to isomorphism.
%C A354494 For definition of quantale see A354493.
%C A354494 A quantale is semi-unital if for all elements x: x <= x * T and x <= T * x, where T is the top element of the underlying lattice.
%D A354494 P. Eklund, J. G. García, U. Höhle, and J. Kortelainen, (2018). Semigroups in complete lattices. In Developments in Mathematics (Vol. 54). Springer Cham.
%D A354494 K. I. Rosenthal, Quantales and their applications. Longman Scientific and Technical, 1990.
%D A354494 Arman Shamsgovara, A catalogue of every quantale of order up to 9 (abstract, to appear), LINZ2022, 39th Linz Seminar on Fuzzy Set Theory, Linz, Austria.
%Y A354494 Cf. A354493, A354495.
%K A354494 nonn,more
%O A354494 1,3
%A A354494 _Arman Shamsgovara_, May 28 2022