Number of orbits on points that are at n steps from 0 in E_8 lattice.

A008337

Number of orbits on points that are at n steps from 0 in E_8 lattice.

Terms

    a(0) =1a(1) =1a(2) =3a(3) =5a(4) =10a(5) =15a(6) =27a(7) =40a(8) =63a(9) =91a(10) =134a(11) =188a(12) =265

External references