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Pascal's triangle
Pascal's triangle is a triangle of numbers bordered by ones on the right and left sides, and every number inside the triangle is the sum of the two numbers above it.
(noun)An example of Pascal's triangle is a triangle in which the second row reads 1 1, and the third row reads 1 2 1.
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See Pascal's triangle in American Heritage Dictionary 4
noun
A triangle of numbers in which a row represents the coefficients of the binomial series. The triangle is bordered by ones on the right and left sides, and each interior entry is the sum of the two entries above.
Origin:
Origin: After Blaise Pascal
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