Category
page 1Figurate numbers
square number
product of some integer with itself
triangular number
figurate number
cube
product of a number being raised to the third power
tetrahedral number
polyhedral number representing a tetrahedron
polygonal number
figurate number
pentagonal number
polygonal number
figurate number
member of the set of triangular numbers, polygonal numbers, or polyhedral numbers
hexagonal number
polygonal number
pronic number
figurate number
heptagonal number
polygonal number
square pyramidal number
pyramidal number
pyramidal number
figurate number
centered polygonal number
figurate number
centered hexagonal number
subclass of centered polygonal number
centered pentagonal number
subclass of centered polygonal number
centered square number
subclass of centered polygonal number
octahedral number
polyhédral number
Fermat polygonal number theorem
theorem
octagonal number
polygonal number
square triangular number
integer that is both a perfect square and a triangular number
fourth power
result of multiplying four instances of a natural number together
centered heptagonal number
subclass of centered polygonal number
nonagonal number
polygonal number
dodecagonal number
polygonal number
centered triangular number
centered figurate number that represents a triangle with a dot in the center and all other dots surrounding the center in successive triangular layers
star number
figurate number
decagonal number
integer of the form 4n²−3n (where n ≥ 0)
centered octagonal number
subclass of centered polygonal number
pentatope number
figurate number; number in the fifth cell of any row of Pascal's triangle starting with the 5-term row 1 4 6 4 1 either from left to right or from right to left
centered decagonal number
subclass of centered polygonal number
fifth power
result of multiplying five instances of a natural number together
centered cube number
centered polyhedral number
centered nonagonal number
subclass of centered polygonal number
sixth power
result of multiplying six instances of a number
centered tetrahedral number
centered polyhedral number
centered octahedral number
centered polyhedral number
seventh power
Result of multiplying seven instances of a number
polite number
positive integer that can be written as the sum of two or more consecutive positive integers
gnomon
figure that, added to a given figure, makes a larger figure of the same shape
Ehrhart polynomial
a polynomial whose values give the number of integer points in a scaled copy of a polytope
icosahedral number
figurate number that represents an icosahedron
centered dodecahedral number
centered polyhedral number
centered icosahedral number
centered polyhedral number
stella octangula number
figurate number
dodecahedral number
polygonal number
eighth power
result of multiplying eight instances of a number together
cannonball problem
number theory problem