-
equal to the
Coxeter number, h, for each
symmetry family.
Decagonal number and
centered decagonal number,
figurate numbers modeled on the
decagon Decagram...
- In mathematics, a
decagonal number is a
figurate number that
extends the
concept of
triangular and
square numbers to the
decagon (a ten-sided polygon)...
- A
centered decagonal number is a
centered figurate number that
represents a
decagon with a dot in the
center and all
other dots
surrounding the center...
-
Ralphsnyder Decagonal Barn is a
historic decagonal shaped barn
located near Masontown,
Preston County, West Virginia. The 10-sided barn was
built in 1890...
- 5th Bell number, the
number of ways to
partition a set of 5 objects. a
decagonal number. with an
aliquot sum of 46;
within an
aliquot sequence of seven...
- In geometry, a bipyramid, dipyramid, or
double pyramid is a
polyhedron formed by
fusing two
pyramids together base-to-base. The
polygonal base of each...
- sum of the
integers 211 to 224 3046 –
centered heptagonal number 3052 –
decagonal number 3059 –
centered cube
number 3061 –
prime of the form 2p-1 3063...
- thousand) is the
natural number following 3999 and
preceding 4001. It is a
decagonal number. 4005 –
triangular number 4007 – safe
prime 4010 –
magic constant...
- In geometry, a
pyramid is a
polyhedron formed by
connecting a
polygonal base and a point,
called the apex. Each base edge and apex form a triangle, called...
-
octahedral number. a
centered triangular number. a
centered square number. a
decagonal number. the
smallest number that can be
expressed as a sum of two squares...
