Output of /home/aschiem/Pgm/Hn/hn --invar -t --shells-5 &K=Q(sqrt(-7)) &Hdim=5 V=K^5 &HNeighbourhood at <2,-1+w> contains 5 classes: mass of the neighbourhood is 1/630 Steinitz class <1,w>: &Hlattice (#1 <- #4) 2 1-w 2 -1+w -1 2 -1+w -1 1 2 w -1 1 1 3 |Aut| = 2^8*3*5 #short vectors: 0 50 240 900 1872 &Hlattice (#2 <- #5) 2 -1 2 1-w 0 2 1 0 w 2 -1 1-w 1-w -1 3 |Aut| = 2^8*3*5 #short vectors: 0 50 240 900 1872 &Hlattice (#3 <- #1) 1 0 1 0 0 1 0 0 0 1 0 0 0 0 1 |Aut| = 2^8*3*5 #short vectors: 10 60 240 750 1872 &Hlattice (#4 <- #2) 1 0 1 0 0 2 0 0 w 2 0 0 1-w -1 2 |Aut| = 2^7*3*7 #short vectors: 4 54 240 840 1872 &Hlattice (#5 <- #3) 1 0 2 0 1-w 2 0 1-w 1 2 0 1 0 w 2 |Aut| = 2^8*3^2 #short vectors: 2 52 240 870 1872 &Adjacence matrix (M_ij=#{neighbours of class i isometric to class j}): 0 16 0 10 5 10 0 1 0 20 1 0 15 10 5 0 7 7 3 14 12 3 3 12 1 classes of Z-lattices with respect to the trace form &Dim=10 V=Q^10 &Genus of the trace-forms: det= 16807 = 7^5 2-adic symbol: 1^10_II 7-adic symbol: 1^5 7^5 -1-adic symbol: +^10 -^0 level=7, weight=5 a_0,..,a_6 determine modular form &Gram (#1 <- H1,H2) 4 1 4 1 2 4 1 2 2 4 1 2 0 2 4 1 2 2 2 2 4 0 1 0 0 0 0 4 0 0 -1 0 1 0 0 4 0 0 0 -1 0 0 0 0 4 2 2 0 0 1 1 -1 2 2 6 |Aut| = 2^8*3*5 #short vectors: 0 0 0 50 0 240 &Gram (#2 <- H3) 2 0 2 0 0 2 0 0 0 2 0 0 0 0 2 1 0 0 0 0 4 0 1 0 0 0 0 4 0 0 1 0 0 0 0 4 0 0 0 1 0 0 0 0 4 0 0 0 0 1 0 0 0 0 4 |Aut| = 2^13*3*5 #short vectors: 0 10 0 60 0 240 &Gram (#3 <- H4) 2 0 2 1 0 4 0 -1 0 4 0 0 0 0 4 0 0 0 0 -2 4 0 0 0 0 2 0 4 0 0 0 0 1 1 2 4 0 0 0 0 -1 2 -1 1 4 0 0 0 0 -2 1 0 -1 1 4 |Aut| = 2^10*3*7 #short vectors: 0 4 0 54 0 240 &Gram (#4 <- H5) 2 1 4 0 0 4 0 0 2 4 0 0 -2 0 4 0 0 2 0 0 4 0 0 1 0 0 1 4 0 0 1 1 0 1 2 4 0 0 -1 0 1 0 -2 0 4 0 0 0 0 -1 0 -2 0 0 4 |Aut| = 2^10*3^2 #short vectors: 0 2 0 52 0 240