alpha 2.1: Construct alpha designs of size (r,k,s)
Copyright (c) 2001-2005 Design Computing (http://designcomputing.net/gendex/)

Note: alpha design for v=12, r=2, k=3, and s=4.

try #     	1
seed      	1023675535524
# of iterations	0
E         	0.5946
E/U       	1
concurrences	0(42) 1(24) 

alpha array (r x k):

0	0	0	
1	3	2	

Plan (blocks are columns):

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

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

Note: alpha used 0.033 seconds.