- The term
figurate number is used by
different writers for
members of
different sets of numbers,
generalizing from
triangular numbers to
different shapes...
-
Erythema (from Gr****
erythros 'red') is
redness of the skin or
mucous membranes,
caused by
hyperemia (increased
blood flow) in
superficial capillaries...
-
Figurate erythema is a form of
erythema that
presents in a ring or an arc shape. An
example is
erythema marginatum.
classical types include:
Erythema annulare...
- 19 (nineteen) is the
natural number following 18 and
preceding 20. It is a
prime number. 19 {\displaystyle 19} is the
eighth prime number, and
forms a...
-
being the
fifth superperfect number and the
sixth power of four, 46. In
figurate numbers, 5 is a
pentagonal number, with the
sequence of
pentagonal numbers...
-
Figurate numbers...
- pan-polygonal number, 1 is
present in
every polygonal number sequence as the
first figurate number of
every kind (e.g.,
triangular number,
pentagonal number, centered...
- This is a list of
notable integer sequences with
links to
their entries in the On-Line
Encyclopedia of
Integer Sequences. OEIS core
sequences Index to...
- parallelogram. Indeed, the
gnomon is the
increment between two
successive figurate numbers,
including square and
triangular numbers.[citation needed] The...
-
arranged in an
equilateral triangle.
Triangular numbers are a type of
figurate number,
other examples being square numbers and cube numbers. The nth triangular...
