IBD 7.0: Program for Constructing an IBD of size (v,k,r)
(c) 2014 Design Computing (designcomputing.net/)

Note: Best  IBD for v=15, k=5, r=14, b=42

Try	Iter	E	E/U	Concurrences
1	53	0.8571	1	4(105) 

Plan for try 1 using seed 1127511732 (blocks are columns):

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

Note: IBD used 0.008 seconds.