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%I #4 Mar 30 2012 16:50:26
%S 2,2,8,8,24,24,64,60,156,134,360,274,800,512,1742,866,3736,1226,8018,
%T 1092,17236,-1304,37564,-11178,82990,-43222,187006,-136760,429010,
%U -395302,1002868,-1085836,2381208,-2892438,5732666,-7551904
%N Bond series for second perpendicular moment of hexagonal net.
%H I. Jensen, <a href="/A120544/b120544.txt">Table of n, a(n) for n = 0..299</a> [from link below]
%H I. Jensen, <a href="http://www.ms.unimelb.edu.au/~iwan/dirperc/series/hcbond_x2.ser">More terms</a>
%K sign
%O 0,1
%A _N. J. A. Sloane_, Aug 08 2006
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