ibd 10.0: Program for Constructing Incomplete Block Designs
(c) 2018 Design Computing (http://designcomputing.net/)

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

Try	iter	E	E/U	Concurrences
7926	52	0.857	1	4(105) 

Plan for try 7926 using seed -472726410 (blocks are columns):

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

Note: ibd used 47.031 seconds.
Note: Evaluation copy - purchase at www.designcomputing.net