Coordination sequence for D_7 lattice.

Terms

a(0) =1a(1) =84a(2) =1498a(3) =11620a(4) =55650a(5) =195972a(6) =559258a(7) =1371316a(8) =2999682a(9) =6003956a(10) =11193882a(11) =19695172a(12) =33023074a(13) =53163684a(14) =82663002a(15) =124723732a(16) =183309826a(17) =263258772a(18) =370401626a(19) =511690788a(20) =695335522