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Series for 2nd parallel moment of square lattice bond percolation near a wall (eventually goes negative).
1

%I #10 Sep 21 2015 19:26:21

%S 1,8,27,96,241,672,1499,3676,7644,17398,34369,74512,141615,296939,

%T 546394,1119562,2004015,4043156,7047626,14102481,23956166,47809422,

%U 79011279,158359672,254037643,514524887,796972392,1646320650

%N Series for 2nd parallel moment of square lattice bond percolation near a wall (eventually goes negative).

%C The 49th term is the first negative term.

%H I. Jensen, <a href="/A056598/b056598.txt">Table of n, a(n) for n = 0..174</a> (from link below)

%H I. Jensen, <a href="http://www.ms.unimelb.edu.au/~iwan/dirperc/series/sqbt2w.ser">More terms</a>

%K sign

%O 0,2

%A _N. J. A. Sloane_, Aug 27 2000