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NMSQ: 2016 Riddles

Year: 2016

Stage:

Competitors: .... v ....


Riddle

1.You can say I am some kind of triangle.

2. I am in a way an isosceles triangle.

3. To be precise, I am a symmetric arrangement of numbers.

4. I consist of various rows of numbers each of which begins and ends with the first natural number.

5. My numbers are the coefficients in a binomial expansion.

I am somebody's triangle.

Who am I?

Pascal's triangle

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