Send the following on WhatsApp
Continue to ChatRecreational Math I: 4x4 squares: Some sequences work better than others http://sj.foodsci.info/2011/02/02/recreational-math-i-4x4-squares-some-sequences-work-better-than-others/
Recreational Math I: 4x4 squares: Some sequences work better than others http://sj.foodsci.info/2011/02/02/recreational-math-i-4x4-squares-some-sequences-work-better-than-others/