G.f. A(x) defined by: A(x)^2 consists entirely of integer coefficients between 1 and 2 (A083952); A(x) is the unique power series solution with A(0)=1.
A084202
G.f. A(x) defined by: A(x)^2 consists entirely of integer coefficients between 1 and 2 (A083952); A(x) is the unique power series solution with A(0)=1.
Terms
- a(0) =1a(1) =1a(2) =0a(3) =1a(4) =0a(5) =1a(6) =-1a(7) =2a(8) =-2a(9) =4a(10) =-6a(11) =10a(12) =-16a(13) =27a(14) =-44a(15) =75a(16) =-127a(17) =218a(18) =-375a(19) =650a(20) =-1130a(21) =1974a(22) =-3460a(23) =6086a(24) =-10736a(25) =18993a(26) =-33685a(27) =59882a(28) =-106683a(29) =190446
External references
- oeis: A084202