CIBD 6.0: Construct a cyclic IBD of size (v,k,r)
(c) 2007 Design Computing (designcomputing.net/)

Note: Best cyclic IBD for v=8, k=4, r=35, b=70.

try #     	1
seed      	1200632749562
# of iterations	1
E         	0.8571
E/U       	1
concurrences	15(7) 

Initial block(s) and the # of blocks generated by each initial block:

0	6	1	4	 (8)
0	6	1	4	 (8)
0	2	1	6	 (8)
0	2	1	5	 (8)
0	5	3	4	 (8)
0	3	5	2	 (8)
0	7	1	2	 (8)
0	1	4	2	 (8)
0	1	4*	5*	 (4)
0	2*	4*	6*	 (2)

Plan (blocks are columns):

5	1	7	4	1	0	5	3	0	3	1	4	7	0	5	7	6	4	4	2	4	1	2	5	2	0	3	2	4	3	5	1	4	1	5	2	7	1	5	5	3	3	0	7	6	7	4	5	3	5	0	6	7	7	3	4	5	3	5	4	1	3	4	7	7	1	5	7	5	4	
1	5	2	0	4	7	0	6	7	1	0	7	5	3	0	4	3	3	7	1	3	0	7	4	1	4	7	5	3	2	1	4	3	5	4	6	3	7	6	4	0	2	7	2	1	6	1	0	6	3	2	0	6	1	2	6	7	7	0	6	7	1	0	0	0	4	1	6	1	6	
7	3	4	6	7	3	2	0	3	5	4	2	1	6	2	3	7	1	6	6	0	5	3	2	6	1	6	7	0	7	0	6	7	2	0	3	0	0	7	1	1	0	5	4	3	4	2	3	4	2	3	1	0	2	4	7	3	1	6	2	6	2	2	6	4	5	6	2	7	2	
2	6	6	1	3	5	4	2	5	6	6	6	2	2	4	1	5	5	0	0	2	7	1	6	3	7	0	6	5	4	2	5	2	0	3	1	6	4	2	6	6	5	2	5	4	1	7	6	5	4	1	7	5	0	1	5	4	0	4	3	5	5	1	2	3	0	2	3	3	0	

Note: CIBD used 0.0 seconds.