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%I M4357 #13 Nov 19 2019 05:57:08
%S 1,-7,18,-24,24,6,66,258,1014,3906,14760,54696,198510,704010,2431110,
%T 8130096,26103624,79292226,221534442,532863372,870102906,-842584128,
%U -17420140980,-111985825752,-559952980782,-2460921694668,-9861404819574,-36339628229910
%N Compressibility of hard-hexagon lattice gas model.
%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%H Sean A. Irvine, <a href="https://github.com/archmageirvine/joeis/blob/master/src/irvine/oeis/a007/A007236.java">Java program</a> (github).
%H G. S. Joyce, <a href="http://dx.doi.org/10.1088/0305-4470/21/20/005">Exact results for the activity and thermal compressibility of the hard-hexagon model</a>, J. Phys. A 21 (1988), L983-L988.
%K sign
%O 0,2
%A _Simon Plouffe_
%E More terms from _Sean A. Irvine_, Nov 19 2019
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