Difference between revisions of "Pyramidal numbers"

(Created page with "The Pyramidal Numbers are the numbers <math>n</math> which are the sum of the first <math>n</math> triangular numbers. The formula for their sum is <math>(n)(n+1)(n+2)/6</math>.")
 
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The Pyramidal Numbers are the numbers <math>n</math> which are the sum of the first <math>n</math> triangular numbers. The formula for their sum is <math>(n)(n+1)(n+2)/6</math>.
 
The Pyramidal Numbers are the numbers <math>n</math> which are the sum of the first <math>n</math> triangular numbers. The formula for their sum is <math>(n)(n+1)(n+2)/6</math>.
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Latest revision as of 19:36, 25 March 2023

The Pyramidal Numbers are the numbers $n$ which are the sum of the first $n$ triangular numbers. The formula for their sum is $(n)(n+1)(n+2)/6$.

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