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 A213233 #5 Oct 29 2019 16:18:10 %S A213233 1,1,5,39,345,3512,38431,451620,5587237,72275004,968509140, %T A213233 13361356169,188704259571,2716467168169,39716842554828, %U A213233 588125693790055,8800638181341593,132838773216409675,2019626662710709088,30891440565153652705,474899505740289874276 %N A213233 G.f. satisfies: A(x) = 1/(1 - x/A(-x*A(x)^10)^4). %C A213233 Compare g.f. to: %C A213233 (1) G(x) = 1/(1 - x/G(-x*G(x)^3)^1) when G(x) = 1/(1 - x*G(x)^1) (A000108). %C A213233 (2) G(x) = 1/(1 - x/G(-x*G(x)^5)^2) when G(x) = 1/(1 - x*G(x)^2) (A001764). %C A213233 (3) G(x) = 1/(1 - x/G(-x*G(x)^7)^3) when G(x) = 1/(1 - x*G(x)^3) (A002293). %C A213233 (4) G(x) = 1/(1 - x/G(-x*G(x)^9)^4) when G(x) = 1/(1 - x*G(x)^4) (A002294). %e A213233 G.f.: A(x) = 1 + x + 5*x^2 + 39*x^3 + 345*x^4 + 3512*x^5 + 38431*x^6 +... %e A213233 Related expansions: %e A213233 A(x)^10 = 1 + 10*x + 95*x^2 + 960*x^3 + 10095*x^4 + 111212*x^5 +... %e A213233 1/A(-x*A(x)^10)^4 = 1 + 4*x + 30*x^2 + 256*x^3 + 2605*x^4 + 28484*x^5 +... %o A213233 (PARI) {a(n)=local(A=1+x+x*O(x^n)); for(i=1, n, A=1/(1-x/subst(A^4, x, -x*subst(A^10, x, x+x*O(x^n)))) ); polcoeff(A, n)} %o A213233 for(n=0, 30, print1(a(n), ", ")) %Y A213233 Cf. A213225, A213226, A213227, A213228, A213229, A213230, A213231, A213232. %Y A213233 Cf. A213091, A213092, A213093, A213094, A213095, A213096, A213098. %Y A213233 Cf. A213099, A213100, A213101, A213102, A213103, A213104, A213105. %Y A213233 Cf. A213108, A213109, A213110, A213111, A213112, A213113. %K A213233 nonn %O A213233 0,3 %A A213233 _Paul D. Hanna_, Jun 06 2012