-
integers from 1 to 36 is 666 (see
number of the beast). 36 is also a
Tridecagonal number. The
number of
inches in a yard (3 feet). In the UK, a standard...
- In geometry, a
prism is a
polyhedron comprising an n-sided
polygon base, a
second base
which is a
translated copy (rigidly
moved without rotation) of the...
-
Dodecagonal 1/2(10n2 − 8n) 1 12 33 64 105 156 217 288 369 460 A051624 13
Tridecagonal 1/2(11n2 − 9n) 1 13 36 70 115 171 238 316 405 505 A051865 14 Tetradecagonal...
- The 20
koruna coin from the
Czech Republic is
tridecagonal....
- 70 is the
seventh pentagonal number. 70 is also the
fourth 13-gonal (
tridecagonal) number. 70 is the
fifth pentatope number. The sum of the
first seven...
-
millimes 1⁄2
dinar 1
dinar 2
dinars 5
dinars On 26
December 2013, two new
tridecagonal coins were introduced: 200
millimes (copper-zinc, 29 mm diameter, 1.80 mm...
-
Dodecagonal pyramid Hendecagonal bipyramid Augmented hexagonal prism 14
Tridecagonal pyramid Dodecagonal bipyramid Elongated hexagonal dipyramid Heptagonal...
-
magic square and n-queens
problem for n = 12. 871 = 13 × 67,
thirteenth tridecagonal number 872 = 23 × 109,
refactorable number, nontotient, 872! + 1 is prime...
- (see Dipyramid)
Heptagonal trapezohedron (14 kites) (see Trapezohedron)
Tridecagonal pyramid (13 triangles, 1
regular tridecagon) (see
Pyramid (geometry))...
-
forms of a pentadecahedron, for
example the
tetradecagonal pyramid, and
tridecagonal prism. In the pentadecahedron, none of the
shapes are
regular polyhedra...
