: Matemáticas: centered square number

... > sequence > integer sequence > figurate number > centered polygonal numbers > centered square number

number > natural numbers > figurate number > centered polygonal numbers > centered square number

centered square number

In elementary number theory, a centered square number is a centered figurate number that gives the number of dots in a square with a dot in the center and all other dots surrounding the center dot in successive square layers. That is, each centered square number equals the number of dots within a given city block distance of the center dot on a regular square lattice. While centered square numbers, like figurate numbers in general, have few if any direct practical applications, they are sometimes studied in recreational mathematics for their elegant geometric and arithmetic properties.
(Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Centered_square_number)

http://data.loterre.fr/ark:/67375/PSR-K53WPLV0-Z

RDF/XML TURTLE JSON-LD última modificación 18/10/24

Loterre