Triangular-demipenteractic duoprism

The triangular-demipenteractic duoprism or trahin is a convex uniform duoprism that consists of 3 demipenteractic prisms, 10 triangular-hexadecachoric duoprisms, and 16 triangular-pentachoric duoprisms. Each vertex joins 2 demipenteractic prisms, 5 triangular-hexadecachoric duoprisms, and 5 triangular-pentachoric duoprisms. It is a duoprism based on a triangle and a demipenteract, and is thus also a convex segmentoexon, as a demipenteract atop demipenteractic prism.

Vertex coordinates
The vertices of a triangular-demipenteractic duoprism of edge length 1 are given by all even sign changes of the last five coordinates of:
 * $$\left(0,\,\frac{\sqrt3}{3},\,\frac{\sqrt2}{4},\,,\,\frac{\sqrt2}{4},\,\frac{\sqrt2}{4},\,\frac{\sqrt2}{4},\,\frac{\sqrt2}{4}\right),$$
 * $$\left(±\frac12,\,-\frac{\sqrt3}{6},\,\frac{\sqrt2}{4},\,\frac{\sqrt2}{4},\,\frac{\sqrt2}{4},\,\frac{\sqrt2}{4},\,\frac{\sqrt2}{4}\right).$$