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 A144249 #13 Jan 09 2025 02:05:13
%S A144249 1,-22,207,-1036,2551,90,-19115,46160,-2208,-166496,203828,203208,
%T A144249 -375150,-551652,489006,2516800,-2361340,-4512048,3998664,5399616,
%U A144249 2581080,-13068144,-10074096,14208912,12992695,25642190,-34987395,-70969812,21454401,84666774,95035979
%N A144249 Apply partial sum operator twice to A000594.
%t A144249 lst={};s1=0;s2=0;Do[s1=s1+RamanujanTau[n];s2=s2+s1;AppendTo[lst,s2],{n,5!}];lst
%t A144249 Nest[Accumulate, RamanujanTau[Range[32]], 2] (* _Amiram Eldar_, Jan 08 2025 *)
%Y A144249 Cf. A000594.
%Y A144249 Partial sums of A144248.
%K A144249 sign
%O A144249 1,2
%A A144249 _Vladimir Joseph Stephan Orlovsky_, Sep 16 2008