Number of n-node animals on f.c.c. lattice.

Terms

a(0) =1a(1) =3a(2) =12a(3) =55a(4) =273a(5) =1425a(6) =7695a(7) =42576a(8) =239925a(9) =1371555a(10) =7931817a(11) =46310127a(12) =272559558a(13) =1615163592a(14) =9627985773a(15) =57688721354a(16) =347228163630