RCD 6.0: Construct an RCD of size (v,k,b)
(c) 2008 Design Computing (designcomputing.net/)

Note: Best RCD for v=15, r=4, k=6 and b=10.

try #     	958
seed      	1778788473
# of iterations	24
f         	2586.67
concurrences	4(105) 
E(column) 	0.8861
E(row)    	0.9618
E         	0.856
E/U       	1

Plan (as a kxs matrix):

0	2	9	12	4	8	3	13	7	5	
11	7	0	4	10	14	6	12	5	8	
13	4	7	11	0	3	14	6	1	2	
5	11	6	13	1	7	9	10	12	3	
14	9	8	1	3	10	12	0	2	11	
9	10	1	8	5	13	4	2	14	6	

Note: RCD used 0.453 seconds.