-
different polyiamonds exist with a
given number of cells? Like polyominoes,
polyiamonds may be
either free or one-sided. Free
polyiamonds are invariant...
- "Mathematical Games"
column in
Scientific American.
Related to
polyominoes are
polyiamonds,
formed from
equilateral triangles; polyhexes,
formed from
regular hexagons;...
-
polyiamonds. Also, as an
equilateral triangle is a
hexagon and
three smaller equilateral triangles it is
possible to
superimpose a
large polyiamond on...
-
angle (which some
authors call a
calisson after the
French sweet—also see
Polyiamond), and the
latter sometimes refers specifically to a
rhombus with a 45°...
- lattice, 14 is also the
number of
fixed two-dimensional triangular-celled
polyiamonds with four cells. 14 is the
number of
elements in a
regular heptagon (where...
-
shapes on a
triangular grid
divided into
equal polyiamond areas containing equal sums give
polyiamond magic constant. The
magic constant of an n-pointed...
- of
regular tetrahedra, the 3-dimensional
analogue of a
polyiamond.
Polytetrahedra and
polyiamonds are
related as
polycubes are
related to polyominoes. In...
- 1975). "More
about tiling the plane: the
possibilities of polyominoes,
polyiamonds and polyhexes".
Scientific American. 233 (2): 112–115. doi:10...
- Rhoads,
Glenn C. (2005). "Planar
tilings by polyominoes, polyhexes, and
polyiamonds".
Journal of Com****tional and
Applied Mathematics. 174 (2): 329–353...
- the 15th
prime to
divide any
number in the sequence.
There are 1987
polyiamonds with 12
cells that tile the
plane isohedrally.
There are 1987 ways to...
