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 A384622 #10 Jun 05 2025 04:50:29 %S A384622 1,1,7,75,989,14822,242833,4253818,78573475,1516124048,30358711661, %T A384622 627789264431,13357722853019,291611321803145,6517101781199460, %U A384622 148833150175812360,3468184751644757228,82363850033966966043,1991430772785525516280,48980124394583747435367 %N A384622 G.f. A(x) satisfies A(x) = 1/( 1 - x*A(x) * A(x*A(x))^5 ). %F A384622 See A384623. %o A384622 (PARI) a(n, k=1) = if(k==0, 0^n, k*sum(j=0, n, binomial(n+j+k, j)/(n+j+k)*a(n-j, 5*j))); %Y A384622 Column k=1 of A384623. %Y A384622 Cf. A088714, A213591, A213639, A376176. %K A384622 nonn %O A384622 0,3 %A A384622 _Seiichi Manyama_, Jun 05 2025