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bn:01420185n
Noun Concept
Categories: Integer sequences, Triangles, Proof without words, Factorial and binomial topics, Squares in number theory
EN
triangular number  Triangle numbers  handshake problem  Numeri trianguli  Pairing Theory
EN
A triangular number or triangle number counts objects arranged in an equilateral triangle. Wikipedia
Definitions
Relations
Sources
EN
A triangular number or triangle number counts objects arranged in an equilateral triangle. Wikipedia
Figurate number Wikidata
IS A
polygonal number
HAS KIND
square triangular number
centered triangular number
HAS INSTANCE
zero
one
ten
long hundred
fifteen
+85 relations
Wikipedia
EN
triangular number
Wikidata
EN
triangular number
Wikipedia Redirections
EN
handshake problem, Numeri trianguli, Pairing Theory, Plustorial, Sum of integers, Termial, Termial function, Trianglar numbers, triangle number, Triangle Numbers, Triangle numbers, Triangular Number, triangular numbers
Wikidata Alias
EN
trigonal number

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