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%I #7 Nov 27 2016 21:20:11
%S 0,0,0,4,16,26,44,62,104,122,164,198,256,298,364,390,480,538,604,670,
%T 792,834,948,1030,1120,1194,1332,1398,1584,1690,1780,1894,2080,2154,
%U 2340,2430,2616,2754,2964,3054,3240,3394,3532,3694,4008,4098
%N Number of 2 X 2 matrices having all elements in {1,2,...,n} and determinant 4.
%C See A210000 for a guide to related sequences.
%H Chai Wah Wu, <a href="/A210002/b210002.txt">Table of n, a(n) for n = 0..10000</a>
%t (See the Mathematica section at A209978.)
%Y Cf. A210000.
%K nonn
%O 0,4
%A _Clark Kimberling_, Mar 16 2012
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