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Triangular Number
Trigonal Number
Figurate number.
Wikipedia | Triangular Number
External Pages About Triangular Number
Encyclopædia Britannica Online
BabelNet
Statements about
Triangular Number
Instance Of
Subclass Of
Described by Source
Meyers Konversations-Lexikon, 4th Edition (1885–1890)
Image
Type of Integer
Polygonal Number
Followed By
:
Square Number
Series Ordinal
:
3
Statement Is Subject Of
:
Q112809540
