%I A000573
%S A000573 4,56,6552,1293216,420909504,207624560256,147174521059584,143968880078466048,
%T A000573 188237563987982390784,320510030393570671051776,695457005987768649183581184,
%U A000573 1888143905499961681708381310976,6314083806394358817244705266941952,25655084790196439186603345691314159616
%N A000573 Number of 4 X n normalized Latin rectangles.
%D A000573 P. G. Doyle, The number of Latin rectangles, (2007), arXiv:math/0703896v1 
               [math.CO]. [From Douglas Stones (douglas.stones(AT)sci.monash.edu.au), 
               Apr 01 2009]
%D A000573 S. M. Kerawala, The enumeration of the Latin rectangle of depth three 
               by means of a difference equation, Bull. Calcutta Math. Soc., 33 
               (1941), 119-127.
%H A000573 Douglas Stones, <a href="b000573.txt">Table of n, K(4,n) for n=4..80</
               a>
%H A000573 B. D. McKay and E. Rogoyski, <a href="http://www.combinatorics.org/Volume_2/
               volume2.html#N3">Latin squares of order ten</a>, Electron. J. Combinatorics, 
               2 (1995) #N3.
%H A000573 Douglas Stones, <a href="http://code.google.com/p/latinrectangles/downloads/
               list">Doyle's formula for the number of reduced 6xn Latin rectangles</
               a>
%H A000573 Douglas Stones, <a href="http://combinatoricswiki.org/wiki/Enumeration_of_Latin_Squares_and_Rectangles">
               Enumeration Of Latin Squares And Rectangles</a>
%H A000573 <a href="Sindx_La.html#Latin">Index entries for sequences related to 
               Latin squares and rectangles</a>
%Y A000573 Cf. A003170, A001009.
%Y A000573 Sequence in context: A158262 A089035 A089516 this_sequence A070019 A056075 
               A000315
%Y A000573 Adjacent sequences: A000570 A000571 A000572 this_sequence A000574 A000575 
               A000576
%K A000573 nonn,nice
%O A000573 4,1
%A A000573 Brendan McKay (bdm(AT)cs.anu.edu.au) and Eric Rogoyski