n=3	a2 	b3	c4	d3	= 72 (72/n = anzahl pro n (24))

n1) 	1-1   	1-2  	1-4     1-3	= 24
n2)	1-1     3-3     1-4 	1-3 	= 12
n2)	2-2	1-1	1-4	1-3 	= 12    n2) von 1 3 1 1 bis 2 1 4 3
n3)	2-2	2-3	1-4	1-3 	= 24