Coordination sequence for A_7 lattice.

Terms

a(0) =1a(1) =56a(2) =812a(3) =5768a(4) =26474a(5) =91112a(6) =256508a(7) =623576a(8) =1356194a(9) =2703512a(10) =5025692a(11) =8823080a(12) =14768810a(13) =23744840a(14) =36881420a(15) =55599992a(16) =81659522a(17) =117206264a(18) =164826956a(19) =227605448a(20) =309182762a(21) =413820584a(22) =546468188a(23) =712832792a(24) =919453346