Tetrahedral / Triangular pyramidal number Calculator

Non-Negative Number (n) =
 
Tetrahedral Number (Tn) =

A triangular pyramidal number, or tetrahedral number represents a pyramid with a triangular base and three sides, called a tetrahedron.

Triangular pyramidal number Formula

Tetrahedral Number (Tn) = ( n × (n+1) × (n+2) ) / 6, Where, n is Non-Negative Numeral

1, 4, 10, 20, 35, 56, 84, 120, 165, 220 are triangular pyramidal numbers.

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Category Loan Tax Interest Investment Profit & Loss Credit and Debt Planning Algebra Calculus Statistics Matrix Number Plane Geometry Solid Geometry Trigonometry Construction Analytic Geometry Math graphing Color Converter Numeral system Unit Energy Temperature Power Frequency Charge Voltage Lighting Classic Physic Electronic Engineering Chemistry Electrical Date Time Commemorative days Observance days Health and medicine Family and Fun Weather Webmaster tools