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bn:03294300n
Noun Concept
SYL
No term available
EN
A tetrahedral number, or triangular pyramidal number, is a figurate number that represents a pyramid with a triangular base and three sides, called a tetrahedron. Wikipedia
Relations
Sources
IS A
EN
integer sequence
EN
pyramidal number
HAS INSTANCE
1
10
120
20
4
+21 relations

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