A172837 - OEIS

%I #4 Mar 31 2012 12:35:41

%S 756756,19292117692187340,2275745987915517509338826880,

%T 540777843742195976921274441959885997900,

%U 191792366099321483346227837613264957393284852811696

%N Number of 3*n X 15 0..4 arrays with row sums 5 and column sums n

%H R. H. Hardin, <a href="/A172837/b172837.txt">Table of n, a(n) for n=1..13</a>

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 06 2010