1 2 3 4 5 6 7 8 9 10
1x1=175x175 2x1=354x175 2x2=354x354 4x1=712x175 4x2=712x354 4x3=712x533 4x4=712x712 21x21=207x207 23x21=645x207 23x23=645x645