|
%I #13 Aug 06 2019 02:39:18
%S 1,1,6,59,807,14102,301039,7618613,223586932,7482796089,281882090283
%N Number of idempotent basis elements in partition monoid P_n.
%H I. Dolinka, J. East, A. Evangelou, D. FitzGerald, N. Ham, et al., <a href="http://arxiv.org/abs/1408.2021">Enumeration of idempotents in diagram semigroups and algebras</a>, arXiv preprint arXiv:1408.2021 [math.GR], 2014. See Table 3.
%Y Cf. A060639, A256033, A256034, A225797.
%K nonn,more
%O 0,3
%A _N. J. A. Sloane_, Mar 14 2015
|
