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 A333289 #13 Jul 09 2025 04:51:26
%S A333289 1,-1,-1,1,0,-1,2,-1,-1,2,-1,0,1,-2,1,1,-2,0,1,1,-1,1,-1,-2,3,-1,-1,1,
%T A333289 1,1,-2,-1,0,-1,3,-1,1,-1,0,1,-2,1
%N A333289 Irregular triangle read by rows: coefficients a_{r,j} (r>=1, j>=0) arising from an expansion of the partition function.
%H A333289 Mircea Merca, Maxie D. Schmidt, <a href="https://doi.org/10.1007/s11139-017-9988-0.">The partition function p(n) in terms of the classical Möbius function</a>, Ramanujan J (2019) 49:87-96.
%e A333289 Triangle begins:
%e A333289 1,
%e A333289 -1,
%e A333289 -1,1,
%e A333289 0,-1,2,-1,
%e A333289 -1,2,-1,0,1,-2,1,
%e A333289 1,-2,0,1,1,-1,1,-1,-2,3,-1,
%e A333289 -1,1,1,1,-2,-1,0,-1,3,-1,1,-1,0,1,-2,1,
%e A333289 ...
%Y A333289 Cf. A333290.
%K A333289 sign,tabf,more
%O A333289 1,7
%A A333289 _N. J. A. Sloane_, Mar 20 2020