Number of orbits on points that are at n steps from 0 in D_9 lattice.
A008374
Number of orbits on points that are at n steps from 0 in D_9 lattice.
Terms
- a(0) =1a(1) =1a(2) =4a(3) =8a(4) =18a(5) =33a(6) =62a(7) =104a(8) =175a(9) =277a(10) =433a(11) =651a(12) =969
External references
- oeis: A008374