triangular number (original) (raw)

figurate number

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Language Label Description Also known as
default for all languages No label defined
English triangular number figurate number trigonal number

Statements

instance of

type of integer

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subclass of

polygonal number

followed by

square number

series ordinal

3

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image

Números triangulares.png
285 × 393; 3 KB

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defining formula

Δn=(n+12)=n(n+1)2,n≥1

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in defining formula

Δn

symbol represents

triangular number

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n

symbol represents

positive integer

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described by source

Meyers Konversations-Lexikon, 4th edition (1885–1890)

statement is subject of

Q112809540

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maintained by WikiProject

WikiProject Mathematics

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Commons category

Triangular numbers

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topic's main category

Category:Triangular numbers

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Identifiers

Australian Educational Vocabulary ID

scot/13463

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BabelNet ID

01420185n

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stated in

BabelNet

Encyclopædia Britannica Online ID

topic/triangular-number

subject named as

triangular number

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Freebase ID

/m/01fbc7

1 reference

stated in

Freebase Data Dumps

publication date

28 October 2013

MathWorld ID

TriangularNumber

subject named as

Triangular Number

1 reference

imported from Wikimedia project

English Wikipedia

Microsoft Academic ID (discontinued)

67518608

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OEIS ID

A000217

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Wikipedia(50 entries)

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Wikibooks(0 entries)

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Wikinews(0 entries)

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Wikiquote(0 entries)

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Wikisource(0 entries)

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Wikiversity(1 entry)

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Wikivoyage(0 entries)

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Wiktionary(0 entries)

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Multilingual sites(1 entry)

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