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Números cuadrados y oblongos.png - Sigmanexus6~commonswiki
Square pyramidal number.svg - David Eppstein
13 nb etoile.jpg - File Upload Bot (Magnus Manske)
Somme-des-carrés (cl).jpg - Jean-Luc W
Somme-des-carrés (nb).jpg - Jean-Luc W
Octahedral number.jpg - David Eppstein
Pyramides quadratae secundae.svg - Mrmw
Heptagonal Number.png - Hohsiaojung
StellaOctangulaNumber.jpg - David Eppstein
Sum of 3 triangular number and one larger.jpg - J Hokkanen
HexagramTriangles.png - DStanB
M squares.png - Leoca
Polygan number.png - Wikipideur
NonagonalNumber.gif - Vikarecsq
Gauss-Dreieck-1.png - Marble machine
Gauss-Dreieck-2.png - Marble machine
Gauss-Quadrat.png - Marble machine
Two square counting puzzles.svg - David Eppstein
The Twelve Days of Christmas visualisation.svg - Cmglee
Nc polygon number3.PNG - Wdwdbot
01-257-Eck-Zahl-4,015625.svg - Petrus3743
01-65.537-Eck-Quadratrix-Lupe.svg - Petrus3743
Pronic partial sum.png - Uno20001
B7 - Figur 2 u. 3.jpg - Koffeeinist
EB1911 - Figurate Numbers.jpg - DivermanAU
Quadrê 289.png - Gloria sah
Cannonball problem.svg - Cmglee
Square triangular number 36.svg - Cmglee
Grid square count puzzle.svg - Cmglee
Grid rectangle count puzzle.svg - Cmglee
Centered square numbers vs triangular numbers.svg - Cmglee
Sixth power example.svg - Cmglee
Tetrahedral triangular number 10.svg - Cmglee
Centered triangular numbers hex grid.svg - Cmglee
Visual proof centered octagonal numbers are odd squares.svg - Cmglee
Nombre pyramidal centre.png - Robert FERREOL
Nombre pyramidal hexagonal ordre 4.png - Robert FERREOL
Nombre-tetraedrique-1-ana.jpg - Robert FERREOL
Nombre dodecaedrique centre.gif - Robert FERREOL
Nombres pentagonaux.gif - Robert FERREOL
Nombres hexagonaux.gif - Robert FERREOL
Nb dodecaedre ana.jpg - Robert FERREOL
Nombres cubiques-non-centres-etape3-300.jpg - Robert FERREOL
Square-pyramidal-14.png - Qalle2
Square-pyramidal-55.png - Qalle2
Square-pyramidal-91.png - Qalle2
Square-pyramidal-140.png - Qalle2
Square-pyramidal-204.png - Qalle2
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