(Q836270)

Statements

instance of

type of integer

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subclass of

figurate number

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defining formula

${\displaystyle P_{k,n}={\frac {(k-2)n^{2}+(k-4)n}{2}}}$

in defining formula

${\displaystyle k\geq {3},k\in \mathbb {N} }$

${\displaystyle n\geq {1},n\in \mathbb {N} }$

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calculated from

number

of

side

in defining formula

${\displaystyle k}$

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ordinal number

in defining formula

${\displaystyle n}$

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described by source

Encyclopædia Britannica 11th edition

statement is subject of

1911 Encyclopædia Britannica/Polygonal Numbers

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maintained by WikiProject

WikiProject Mathematics

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topic's main category

Category:Polygonal numbers

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Identifiers