1 for the outermost square
+5*2 for the offset squares and their divisions = 11
+16 for each of the small squares in the main grid = 27
+4 for the 2x2 squares in each corner = 31
+4 for the 3x3 squares in each corner = 35
+4 for the 2x2 squares centered on each side = 39
+1 for the 2x2 square in the middle = 40
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