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tetrahedral numbers

tetrahedral numbers is the plural of tetrahedral number.

Meaning of tetrahedral number

Noun

tetrahedral number (plural tetrahedral numbers)

  1. A number which results from the summation of consecutive triangular numbers, starting from 1. If the triangular numbers in such a summation are depicted as horizontal triangular arrays of units then these arrays can be stacked vertically to yield a tetrahedral array.
    • The nᵗʰ tetrahedral number can be calculated with the formula #123;(n#43;1)³-(n#43;1)#92;over 6#125;.

Questions about tetrahedral numbers

What is tetrahedral numbers the plural of?
Tetrahedral numbers is the plural of tetrahedral number.

Words near tetrahedral numbers in the dictionary

  1. tetrahalomethane
  2. tetrahalomethanes
  3. tetrahedra
  4. tetrahedral
  5. tetrahedral number
  6. tetrahedral numbers
  7. tetrahedralisable
  8. tetrahedrality
  9. tetrahedralizable
  10. tetrahedralization
  11. tetrahedralizations

Source and license

Adapted from Wiktionary: tetrahedral numbers (page history and authors); tetrahedral number (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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