Coordination sequence for A_4 lattice.

Terms

a(0) =1a(1) =20a(2) =110a(3) =340a(4) =780a(5) =1500a(6) =2570a(7) =4060a(8) =6040a(9) =8580a(10) =11750a(11) =15620a(12) =20260a(13) =25740a(14) =32130a(15) =39500a(16) =47920a(17) =57460a(18) =68190a(19) =80180a(20) =93500a(21) =108220a(22) =124410a(23) =142140a(24) =161480a(25) =182500a(26) =205270a(27) =229860a(28) =256340a(29) =284780