This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A107091 #5 Mar 12 2015 19:19:26
%S A107091 1,9,0,3,0,0,-9,0,0,46,0,0,-276,0,0,1827,0,0,-12838,0,0,93885,0,0,
%T A107091 -706878,0,0,5440856,0,0,-42608139,0,0,338345586,0,0,-2717685006,0,0,
%U A107091 22039352340,0,0,-180191062062,0,0,1483568585389,0,0,-12289222187157,0,0,102343255814052,0,0,-856335797389803,0,0
%N A107091 G.f. A(x) satisfies: A(x) = A(x^3)^(1/3) + 9*x.
%C A107091 Self-convolution 9th power of A107089. Self-convolution cube of A107090.
%e A107091 A(x) = 1 + 9*x + 3*x^3 - 9*x^6 + 46*x^9 - 276*x^12 + 1827*x^15 -+...
%e A107091 A(x^3)^(1/3) = 1 + 3*x^3 - 9*x^6 + 46*x^9 - 276*x^12 + 1827*x^15 -+...
%o A107091 (PARI) {a(n)=local(A=1+x);for(i=1,n,A=(subst(A^3,x,x^3)+9*x+x*O(x^n))^(1/9)); polcoeff(A^9,n,x)}
%Y A107091 Cf. A107089, A107090.
%K A107091 sign
%O A107091 0,2
%A A107091 _Paul D. Hanna_, May 11 2005