CUT 6.1: Multi-dimensional blocking program
(c) 2009 Design Computing (designcomputing.net/)

Note: Best blocked design for m=3, p=12, n=15.

try #     	1
seed      	1230361108109
# of iterations	4
f         	48 (0)
clear 2fi's	3
trace(V)	3.7375
det       	1.50994944E9
std. det  	1.1637704E-5
BF        	0.8513

Factors levels (blocking/noise factor(s) are in column(s) 1):

1	-1	0	-1	
1	-1	0	1	
1	0	0	0	
1	1	0	-1	
1	1	0	1	
2	-1	-1	0	
2	0	0	0	
2	0	1	-1	
2	0	1	1	
2	1	-1	0	
3	-1	1	0	
3	0	-1	-1	
3	0	-1	1	
3	0	0	0	
3	1	1	0	

X'X

10	0	0	-2	4	-2	0	0	0	0	0	0	
	30	0	-2	4	-2	0	0	0	0	0	0	
		15	8	8	8	0	0	0	0	0	0	
			8	4	4	0	0	0	0	0	0	
				8	4	0	0	0	0	0	0	
					8	0	0	0	0	0	0	
						8	0	0	0	0	0	
							8	0	0	0	0	
								8	0	0	0	
									4	0	0	
										4	0	
											4	

inverse(X'X)

0.4	0.1	-0	0.25	-0.5	0.25	0	0	0	0	0	-0	
	0.0667	-0	0.0833	-0.1667	0.0833	0	0	0	0	0	-0	
		0.3333	-0.1667	-0.1667	-0.1667	0	0	0	0	0	-0	
			0.4375	-0.3125	0.1875	0	0	0	0	0	-0	
				0.9375	-0.3125	0	0	0	0	0	-0	
					0.4375	0	0	0	0	0	-0	
						0.125	0	0	0	0	-0	
							0.125	0	0	0	-0	
								0.125	0	0	-0	
									0.25	0	-0	
										0.25	-0	
											0.25	

Note: Clear 2fi's: 12 13 23.
Note: CUT used 0.016 seconds.