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%I #8 Oct 04 2019 09:09:33
%S 1,-1,-4,-16,-73,-341,-1659,-8483,-44144,-236626,-1282073,-7078309,
%T -39389088,-221480060,-1259127130,-7134579098,-41630476786,
%U -232579012470,-1437468607632,-7355318282652,-54666868678671
%N Site percolation series for hexagonal net.
%H Iwan Jensen, <a href="https://researchers.ms.unimelb.edu.au/~ij@unimelb/dirperc/series/hspp.ser">More terms</a>
%H Iwan Jensen, Anthony J. Guttmann, <a href="https://arxiv.org/abs/cond-mat/9509121">Series expansions of the percolation probability for directed square and honeycomb lattices</a>, arXiv:cond-mat/9509121, 1995; J. Phys. A 28 (1995), no. 17, 4813-4833.
%Y Cf. A006735.
%K sign
%O 0,3
%A _N. J. A. Sloane_.
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