Odd unimodular lattices of rank 15 with no norm 1 vectors

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

• 1 isometry class (1 exceptional), mass 1/41845579776000.
• 1 possible root systems, see here for statistics of reduced masses for each root system.
• Classified in: M. Kneser, Klassenzahlen definiter quadratischer Formen, Archiv der Math. 8, 241–250 (1957).
• Construction(s): Rank 16 unimodular lattices with 2 norm 1 vectors.