Voozh

A389490

Decimal expansion of the largest dihedral angle, in radians, in a biaugmented triangular prism (Johnson solid J_50).

2, 9, 5, 7, 8, 3, 0, 7, 8, 7, 4, 4, 5, 6, 1, 6, 3, 0, 2, 4, 8, 1, 9, 2, 8, 6, 6, 6, 1, 2, 4, 6, 8, 3, 1, 3, 6, 5, 5, 2, 5, 5, 2, 5, 2, 3, 1, 4, 5, 0, 4, 6, 2, 5, 5, 5, 7, 7, 7, 1, 1, 1, 2, 2, 7, 4, 6, 4, 2, 9, 5, 6, 0, 5, 7, 0, 0, 2, 2, 5, 7, 6, 9, 8, 4, 1, 2, 8, 1, 4

(list; constant; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

This is the dihedral angle between the two adjacent triangular faces at the edge where the two pyramid parts of the solid meet.

Also the analogous dihedral angle in a triaugmented triangular prism (Johnson solid J_51).

LINKS

Paolo Xausa, Table of n, a(n) for n = 1..10000

Polytope Wiki, Biaugmented triangular prism.

Polytope Wiki, Triaugmented triangular prism.

Wikipedia Biaugmented triangular prism.

Wikipedia Triaugmented triangular prism.