Problem 159. Figurate number triangle

the cyclist

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Check whether the input matrix is a figurate number triangle: http://mathworld.wolfram.com/FigurateNumberTriangle.html

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287 Solutions

100 Solvers

Last Solution submitted on Apr 21, 2026

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3 Comments

@bmtran (Bryant Tran) on 29 Jan 2012

you should probably add a test case where the correct answer is false.

Franck Dernoncourt on 29 Jan 2012

True!

Ned Gulley on 22 Mar 2012

I added a few more tests as suggested.

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