A172839 - OEIS

%I #6 Sep 25 2021 10:18:06

%S 19,7100821,811889208811800,4509741556140302851191900,

%T 472456616741846499933573760930072500,

%U 525065279695190719776277892214398176478661270000

%N Number of 3*n X 2*n 0..4 arrays with row sums 4 and column sums 6.

%H R. H. Hardin, <a href="/A172839/b172839.txt">Table of n, a(n) for n=1..16</a>

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 06 2010