Inverse binomial transform of the number of planar partitions (A000219).

Terms

a(0) =1a(1) =0a(2) =2a(3) =-1a(4) =4a(5) =-7a(6) =19a(7) =-48a(8) =123a(9) =-304a(10) =728a(11) =-1694a(12) =3865a(13) =-8735a(14) =19739a(15) =-44875a(16) =102818a(17) =-236939a(18) =546988a(19) =-1260023a(20) =2888607a(21) =-6584008a(22) =14927816a(23) =-33714166a(24) =75976024a(25) =-171095098a(26) =385405617a(27) =-868708176a(28) =1959010348a(29) =-4417777937