A085850 - OEIS

%I #35 Feb 16 2025 08:32:50

%S 1,5,0,3,0,4,8,0,8,2,4,7,5,3,3,2,2,6,4,3,2,2,0,6,6,3,2,9,4,7,5,5,5,3,

%T 6,8,9,3,8,5,7,8,1,0

%N Decimal expansion of hard square entropy constant.

%D Steven R. Finch, Mathematical Constants, Encyclopedia of Mathematics and its Applications, vol. 94, Cambridge University Press, 2003, Section 5.12, p. 342.

%H R. J. Baxter, <a href="http://arxiv.org/abs/cond-mat/9811264">Planar Lattice Gases with Nearest-Neighbour Exclusion</a>, arXiv:cond-mat/9811264 [cond-mat.stat-mech], 1998; Annals of Combinatorics, 3 (1999), pp. 191-203.

%H S. R. Finch, <a href="http://dx.doi.org/10.1007/BF01608791">Several Constants Arising in Statistical Mechanics</a>, Annals Combinat. vol 3 (1999) issue (2-4) pp. 323-335.

%H Vaclav Kotesovec, <a href="https://oeis.org/wiki/User:Vaclav_Kotesovec">Non-attacking chess pieces</a>, 6ed, 2013, p. 69 and 372.

%H Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/HardSquareEntropyConstant.html">Hard Square Entropy Constant</a>.

%e 1.503048082...

%Y Cf. A006506, A085851, A247413.

%K nonn,nice,cons,more

%O 1,2

%A _Eric W. Weisstein_, Jul 05 2003

%E More terms from _R. J. Mathar_, Jul 18 2007

%E Terms a(19)-a(44) computed R. J. Baxter, 1998