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%I #10 Jun 22 2021 07:03:25
%S 1,4,16,74,419,2980,26566,289279,3726311
%N Number of GP-iposets (gluing-parallel posets with interfaces) with n points.
%H Uli Fahrenberg, Christian Johansen, Georg Struth, Ratan Bahadur Thapa, <a href="https://arxiv.org/abs/1910.06162">Generating Posets Beyond N</a>, arXiv:1910.06162 [cs.FL], 2019.
%H Uli Fahrenberg, Christian Johansen, Georg Struth, Krzysztof Ziemiański, <a href="https://arxiv.org/abs/2106.10895">Posets with Interfaces for Concurrent Kleene Algebra</a>, arxiv:2106.10895 [cs.FL], 2021.
%Y The seven sequences in the table of Uli Fahrenberg et al., 2019, are A000112, A003430, A079566, A331156, A331157, A331158, A331159.
%K nonn,more
%O 0,2
%A _N. J. A. Sloane_, Jan 16 2020, following a suggestion from _Michael De Vlieger_.
%E a(7)-a(8) from _Uli Fahrenberg_, Jun 22 2021
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