Number of pairs of minimal vectors in n-dimensional lattice Kappa_n.
A028926
Number of pairs of minimal vectors in n-dimensional lattice Kappa_n.
Terms
- a(0) =0a(1) =1a(2) =3a(3) =6a(4) =12a(5) =20a(6) =36a(7) =46a(8) =66a(9) =90a(10) =138a(11) =216a(12) =378a(13) =459a(14) =616a(15) =873a(16) =1645a(17) =2133
External references
- oeis: A028926