Abstract In this paper we study numerically a new type of central configurations
of the 3n-body problem with equal masses which consist of three n-gons contained
in three planes z = 0 and z = ±β = 0. The n-gon on z = 0 is scaled by a factor α
and it is rotated by an angle of π/n with respect to the ones on z = ±β. In this ...»»»»
Abstract In this paper we study numerically a new type of central configurations
of the 3n-body problem with equal masses which consist of three n-gons contained
in three planes z = 0 and z = ±β = 0. The n-gon on z = 0 is scaled by a factor α
and it is rotated by an angle of π/n with respect to the ones on z = ±β. In this kind
of configurations, the masses on the planes z = 0 and z = β are at the vertices of
an antiprism with bases of different size. The same occurs with the masses on z = 0
and z = −β. We call this kind of central configurations double-antiprism central
configurations. We will show the existence of central configurations of this type.^^^^