Acronym n-tricu
Name {n}-tricu duoprism,
n-prism-first half of n-co duoprism
Circumradius sqrt[1+1/(2 sin(π/n))2]
Volume 5n sqrt(2)/(4 tan(π/n))
Face vector 9n, 24n, 23n+9, 9n+15, n+8
Especially tritricu (n=3)   squatricu (n=4)   hatricu (n=6)   otricu (n=8)  
Confer
uniform relative:
n-co dip  
general polytopal classes:
segmentotera   lace simplices  

Incidence matrix according to Dynkin symbol

oo-n-xx ox3xx&#x   → height = sqrt(2/3) = 0.816497
((3,n)-dip || (6,n)-dip)

o.-n-o. o.3o.    | 3n  * |  2  2  2  0  0  0 | 1  4 1  4  1  2 0  0  0 0 | 2 2 2  2  4 1 0 0 0 | 1 1 2 2 0
.o-n-.o .o3.o    |  * 6n |  0  0  1  2  1  1 | 0  0 0  2  1  1 1  2  2 1 | 0 0 1  2  2 1 1 1 2 | 0 1 1 2 1
-----------------+-------+-------------------+---------------------------+---------------------+----------
..   x. .. ..    |  2  0 | 3n  *  *  *  *  * | 1  2 0  2  0  0 0  0  0 0 | 2 1 2  1  2 0 0 0 0 | 1 1 2 1 0
..   .. .. x.    |  2  0 |  * 3n  *  *  *  * | 0  2 1  0  0  1 0  0  0 0 | 1 2 0  0  2 1 0 0 0 | 1 0 1 2 0
oo-n-oo oo3oo&#x |  1  1 |  *  * 6n  *  *  * | 0  0 0  2  1  1 0  0  0 0 | 0 0 1  2  2 1 0 0 0 | 0 1 1 2 0
..   .x .. ..    |  0  2 |  *  *  * 6n  *  * | 0  0 0  1  0  0 1  1  1 0 | 0 0 1  1  1 0 1 1 1 | 0 1 1 1 1
..   .. .x ..    |  0  2 |  *  *  *  * 3n  * | 0  0 0  0  1  0 0  2  0 1 | 0 0 0  2  0 1 1 0 2 | 0 1 0 2 1
..   .. .. .x    |  0  2 |  *  *  *  *  * 3n | 0  0 0  0  0  1 0  0  2 1 | 0 0 0  0  2 1 0 1 2 | 0 0 1 2 1
-----------------+-------+-------------------+---------------------------+---------------------+----------
o.-n-x. .. ..    |  n  0 |  n  0  0  0  0  0 | 3  * *  *  *  * *  *  * * | 2 0 2  0  0 0 0 0 0 | 1 1 2 0 0
..   x. .. x.    |  4  0 |  2  2  0  0  0  0 | * 3n *  *  *  * *  *  * * | 1 1 0  0  1 0 0 0 0 | 1 0 1 1 0
..   .. o.3x.    |  3  0 |  0  3  0  0  0  0 | *  * n  *  *  * *  *  * * | 0 2 0  0  0 1 0 0 0 | 1 0 0 2 0
..   xx .. ..&#x |  2  2 |  1  0  2  1  0  0 | *  * * 6n *  *  *  *  * * | 0 0 1  1  1 0 0 0 0 | 0 1 1 1 0
..   .. ox ..&#x |  1  2 |  0  0  2  0  1  0 | *  * *  * 3n  * *  *  * * | 0 0 0  2  0 1 0 0 0 | 0 1 0 2 0
..   .. .. xx&#x |  2  2 |  0  1  2  0  0  1 | *  * *  *  * 3n *  *  * * | 0 0 0  0  2 1 0 0 0 | 0 0 1 2 0
.o-n-.x .. ..    |  0  n |  0  0  0  n  0  0 | *  * *  *  *  * 6  *  * * | 0 0 1  0  0 0 1 1 0 | 0 1 1 0 1
..   .x .x ..    |  0  4 |  0  0  0  2  2  0 | *  * *  *  *  * * 3n  * * | 0 0 0  1  0 0 1 0 1 | 0 1 0 1 1
..   .x .. .x    |  0  4 |  0  0  0  2  0  2 | *  * *  *  *  * *  * 3n * | 0 0 0  0  1 0 0 1 1 | 0 0 1 1 1
..   .. .x3.x    |  0  6 |  0  0  0  0  3  3 | *  * *  *  *  * *  *  * n | 0 0 0  0  0 1 0 0 2 | 0 0 0 2 1
-----------------+-------+-------------------+---------------------------+---------------------+----------
o.-n-x. .. x.     2n  0 | 2n  n  0  0  0  0 | 2  n 0  0  0  0 0  0  0 0 | 3 * *  *  * * * * * | 1 0 1 0 0
..   x. o.3x.      6  0 |  3  6  0  0  0  0 | 0  3 2  0  0  0 0  0  0 0 | * n *  *  * * * * * | 1 0 0 1 0
oo-n-xx .. ..&#x   n  n |  n  0  n  n  0  0 | 1  0 0  n  0  0 1  0  0 0 | * * 6  *  * * * * * | 0 1 1 0 0
..   xx ox ..&#x   2  4 |  1  0  4  2  2  0 | 0  0 0  2  2  0 0  1  0 0 | * * * 3n  * * * * * | 0 1 0 1 0
..   xx .. xx&#x   4  4 |  2  2  4  2  0  2 | 0  1 0  2  0  2 0  0  1 0 | * * *  * 3n * * * * | 0 0 1 1 0
..   .. ox3xx&#x   3  6 |  0  3  6  0  3  3 | 0  0 1  0  3  3 0  0  0 1 | * * *  *  * n * * * | 0 0 0 2 0
.o-n-.x .x ..      0 2n |  0  0  0 2n  n  0 | 0  0 0  0  0  0 2  n  0 0 | * * *  *  * * 3 * * | 0 1 0 0 1
.o-n-.x .. .x      0 2n |  0  0  0 2n  0  n | 0  0 0  0  0  0 2  0  n 0 | * * *  *  * * * 3 * | 0 0 1 0 1
..   .x .x3.x      0 12 |  0  0  0  6  6  6 | 0  0 0  0  0  0 0  3  3 2 | * * *  *  * * * * n | 0 0 0 1 1
-----------------+-------+-------------------+---------------------------+---------------------+----------
o.-n-x. o.3x.     3n  0 | 3n 3n  0  0  0  0 | 3 3n n  0  0  0 0  0  0 0 | 3 n 0  0  0 0 0 0 0 | 1 * * * *
oo-n-xx ox ..&#x   n 2n |  n  0 2n 2n  n  0 | 1  0 0 2n  n  0 2  n  0 0 | 0 0 2  n  0 0 1 0 0 | * 3 * * *
oo-n-xx .. xx&#x  2n 2n | 2n  n 2n 2n  0  n | 2  n 0 2n  0  n 2  0  n 0 | 1 0 2 0  n  0 0 1 0 | * * 3 * *
..   xx ox3xx&#x   6 12 |  3  6 12  6  6  6 | 0  3 2  6  6  6 0  3  3 2 | 0 1 0  3  3 2 0 0 1 | * * * n *
.o-n-.x .x3.x      0 6n |  0  0  0 6n 3n 3n | 0  0 0  0  0  0 6 3n 3n n | 0 0 0  0  0 0 3 3 n | * * * * 1

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