G.f. A(x) satisfies A(x)^3 = A( x^3 + 3*x*A(x)^3 + 3*A(x)^5 ).

A378263

G.f. A(x) satisfies A(x)^3 = A( x^3 + 3*x*A(x)^3 + 3*A(x)^5 ).

Terms

    a(0) =1a(1) =1a(2) =3a(3) =11a(4) =45a(5) =197a(6) =903a(7) =4278a(8) =20780a(9) =102932a(10) =517958a(11) =2640351a(12) =13606108a(13) =70762223a(14) =370940297a(15) =1957904407a(16) =10396732686a(17) =55503069694a(18) =297713467184

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