RCD 6.0: Construct a resolvable RCD of size (r,k,s)
(c) 2008 Design Computing (designcomputing.net/)

Note: Best RCD for v=28, r=2, k=4 and s=7.

try #     	13
seed      	-1378216873
# of iterations	17
f         	449.25
concurrences	0(138) 1(228) 2(12) 
E(column) 	0.6364
E(row)    	0.812
E         	0.5547
E/U       	1

Plan (as kxs matrices):

2	8	5	11	13	21	9	
27	0	12	6	20	16	4	
14	19	3	7	1	22	24	
25	23	26	15	10	17	18	

15	3	2	8	1	4	17	
27	9	10	26	0	22	7	
19	6	16	14	18	5	13	
21	25	24	20	11	23	12	

Note: RRCD used 0.016 seconds.