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

Terms

a(0) =1a(1) =3a(2) =12a(3) =52a(4) =238a(5) =1125a(6) =5438a(7) =26715a(8) =132871a(9) =667312a(10) =3377906a(11) =17210522a(12) =88169685a(13) =453810095a(14) =2345209383a(15) =12162367228a(16) =63270384303