Date: Mon, 04 Sep 95 23:41:00 -0400
From: Mark Longridge <mark.longridge@canrem.com
>
Subject: Dino Cube
# Here are a few Dino cube calculations. The calculations for the
# cube with an X cut on each of the 6 sides, assuming period 3
# rotations of 3 edges (there are 8 of these, one for each corner)
# The Dino cube has 12! /2 = 239,500,800 essential states # Fixing one edge gives the Dino cube a fixed orientation # in space and gives 11! /2 = 19,958,400 combinations
# It has less combinations then the standard pyraminx, but more
# than the 2x2x2 Rubik's Pocket cube.
# The Dino cube has 12 edges which can not flip, observed by Rubik
# himself back in 1982 (re: Rubik's Logic & Fantasy in Space.)
# Dino cube has trivial centre
dino := Group(
(1,24,7) (2,23,5),
(2,12,22) (4,11,24),
(4,19,10) (3,17,12),
(3,5,20) (1,6,19),
(13,21,11) (14,22,9),
(14,8,23) (16,7,21),
(16,18,6) (15,20,8),
(15,9,17) (13,10,18)
);;