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 A384858 #8 Jun 11 2025 10:11:21 %S A384858 1,1,7,136,3781,163216,9103699,646696576,55084545289,5491386074368, %T A384858 625131329307391,79898089652402176,11312691034562944525, %U A384858 1755128489880477528064,295767148537661982373963,53734366029378178883731456,10459045695948264117117132049,2169330513346145105101803814912 %N A384858 E.g.f. A(x) satisfies A(x) = exp( x/A(-x*A(x)^8)^3 ). %F A384858 See A384862. %o A384858 (PARI) a(n, k=-1) = if(n*k==0, 0^n, (-1)^n*k*sum(j=1, n, (-8*n+8*j+k)^(j-1)*binomial(n, j)*a(n-j, 3*j))); %Y A384858 Column k=1 of A384862. %Y A384858 Cf. A052752, A213112, A213113, A384855, A384856, A384857. %K A384858 nonn %O A384858 0,3 %A A384858 _Seiichi Manyama_, Jun 10 2025