cibd 10.0: Program for Constructing cyclic IBDs of size (v,k,r)
(c) 2018 Design Computing (http://designcomputing.net/)

Note: Best cyclic IBD for v=11, k=4, r=4, b=11

Try	iter	E	E/U	Concurrences
1	0	0.817	1.001	1(8) 2(2) 

Initial block(s) and the no. of blocks generated by each initial block for try 1 using seed 1533472185708:

0	10	9	3	 (11)

Plan (blocks are columns):

6	8	3	9	10	2	7	5	0	4	1	
5	7	2	8	9	1	6	4	10	3	0	
4	6	1	7	8	0	5	3	9	2	10	
9	0	6	1	2	5	10	8	3	7	4	

Note: The order of treatments within each block is not randomized.
Note: cibd used 4.398 seconds.
Note: Evaluation copy - purchase at www.designcomputing.net