Pascal's triangle is familiar from the study of algebra and combinatorics. |
Though sometimes presented as an equilateral triangle, for our purposes a right isosceles format is better. |
Make a triangular array of boxes and fill each box of the left and right sides with 1s. |
Starting from the top, fill every other box with the sum of the entries in the box immediately above, and immediately above and to the left. |
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Here are the first few rows. |
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