Pick any odd positive integer. It is the difference of two squares. For example, 55 = 8*8 - 3*3 Then we can make a number series by adding up and down as follows: 8 * 8 - 3 * 3 = 55 7 * 9 - 2 * 4 = 55 6 * 10 - 1 * 5 = 55 5 * 11 - 0 * 6 = 55 4 * 12 + 1 * 7 = 55 3 * 13 + 2 * 8 = 55 2 * 14 + 3 * 9 = 55... Sign in to see full entry.
Mathematics:
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