G.f. A(x) satisfies 1/x = Sum_{n=-oo..+oo} A(x)^(2*n) * (A(x)^n + 2)^(2*n+1).
A378572
G.f. A(x) satisfies 1/x = Sum_{n=-oo..+oo} A(x)^(2*n) * (A(x)^n + 2)^(2*n+1).
Terms
- a(0) =1a(1) =1a(2) =5a(3) =14a(4) =89a(5) =371a(6) =2161a(7) =10696a(8) =61969a(9) =335434a(10) =1952772a(11) =11086400a(12) =65242174a(13) =381110396a(14) =2268552339a(15) =13498467880a(16) =81190422545a(17) =489403577479
External references
- oeis: A378572