Even lattices of rank 2 and determinant 7

Complete list here (see the main page for format details).

• 1 isometry class, mass 1/4.
• 1 possible root systems, see here for statistics of reduced masses for each root system.
• Construction(s): Norm 7/6 vectors in duals of rank 3 even lattices of determinant 6. Norm 7/10 vectors in duals of rank 3 even lattices of determinant 10. Embeddings of \({\rm A}_6\) in rank 8 even unimodular lattices.