Coordination sequence for A_12 lattice.

Terms

a(0) =1a(1) =156a(2) =6162a(3) =112268a(4) =1219374a(5) =9129276a(6) =51697802a(7) =235895244a(8) =907129236a(9) =3037849828a(10) =9079799742a(11) =24680519604a(12) =61908797418a(13) =144977296932a(14) =319917948246a(15) =670283877588