 SEQ[1  ..  6]          2       5       1       6       4       3
Value of SEQCOLORING is ->  3

 COLORS of Vertices 1..N  
     VERTEX[ 1 ]	 3
     VERTEX[ 2 ]	 1
     VERTEX[ 3 ]	 2
     VERTEX[ 4 ]	 1
     VERTEX[ 5 ]	 2
     VERTEX[ 6 ]	 3
