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 A382196 #9 Mar 18 2025 21:45:30
%S A382196 1,3,-9,48,-288,1917,-13563,99927,-758079,5879757,-46401705,371337021,
%T A382196 -3005974710,24568145019,-202442064183,1679864383800,-14024716370064,
%U A382196 117715927282470,-992725129013121,8407191323492226,-71467963130581758,609605555349330009
%N A382196 Expansion of (1 + 9 * Sum_{k>=0} x^(3^k))^(1/3).
%C A382196 This sequence is different from A298308.
%F A382196 G.f. A(x) satisfies A(x) = (A(x^3)^3 + 9*x)^(1/3).
%Y A382196 Cf. A223142, A223143, A298308, A382190.
%K A382196 sign,easy
%O A382196 0,2
%A A382196 _Seiichi Manyama_, Mar 18 2025