Demihepteractic heptacomb

The demihepteractic heptacomb or hash, also called the 7-demicubic honeycomb, is a convex uniform heptacomb. 14 hecatonicosoctaexa and 128 demihepteracts join at each vertex of this tessellation. It is the 7D demihypercubic honeycomb and can be formed as the alternation of the hepteractic heptacomb.

Vertex coordinates
The vertices of a demihepteractic heptacomb of edge length 1 are given by:
 * $$\frac{\sqrt2}{2}\left(i,\,j,\,k,\,l,\,m,\,n,\,o\right),$$

where i, j, k, l, m, n, and o are integers, and i+j+k+l+m+n+o is even.