A209986 - OEIS

%I #8 Nov 27 2016 22:27:45

%S 0,0,24,176,240,368,528,720,848,1232,1360,1680,2000,2384,2576,3216,

%T 3472,3984,4368,4944,5200,6160,6480,7184,7824,8464,8848,10000,10384,

%U 11280,11920,12880,13392,14992,15504,16272,17040,18192,18768,20688

%N Number of 2 X 2 matrices having all elements in {-n,...n} and determinant 3.

%C See A210000 for a guide to related sequences.

%H Chai Wah Wu, <a href="/A209986/b209986.txt">Table of n, a(n) for n = 0..10000</a>

%t (See the Mathematica section at A209981.)

%Y Cf. A210000.

%K nonn

%O 0,3

%A _Clark Kimberling_, Mar 17 2012