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 A238302 #12 Jun 02 2025 09:21:17 %S A238302 1,1,3,18,159,1872,27585,488736,10122273,240029568,6413759739, %T A238302 190698235200,6244960476447,223354435468032,8662843993599081, %U A238302 362162307560207616,16235331377066437185,776899798554908971008,39526189786699908619635,2130538920122365706916864 %N A238302 E.g.f. satisfies: A'(x) = 1/(1 - x*A(x))^3 with A(0)=1. %H A238302 Vaclav Kotesovec, <a href="/A238302/b238302.txt">Table of n, a(n) for n = 0..277</a> %F A238302 a(n) ~ c * n! * d^n / n^(5/4), where c = 0.502313... and d = 3.03113979... %o A238302 (PARI) {a(n)=local(A=1+x); for(i=0, n, A=1+intformal(1/(1-x*A+x*O(x^n))^3 )); n!*polcoeff(A, n)} %o A238302 for(n=0, 20, print1(a(n), ", ")) %Y A238302 Cf. A144010, A144011. %K A238302 nonn %O A238302 0,3 %A A238302 _Vaclav Kotesovec_, Feb 24 2014