Number of vectors in Barnes-Wall lattice BW_{2^n} with twice the minimal norm, divided by 2^(n+1).

A110973

Number of vectors in Barnes-Wall lattice BW_{2^n} with twice the minimal norm, divided by 2^(n+1).

Terms

    a(0) =1a(1) =3a(2) =135a(3) =16335a(4) =75700575

External references