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 A352557 #5 Mar 21 2022 11:11:50 %S A352557 1,1,2,2,0,2,1,3,5,0,0,4,0,1,0,5,0,5,2,0,2,0,0,6,1,0,10,2,2,0,2,7,0,0, %T A352557 0,10,2,2,0,0,0,2,0,0,0,0,2,10,2,1,0,0,2,10,0,3,4,2,2,0,0,2,5,11,0,0, %U A352557 0,0,0,0,0,15,0,2,2,4,0,0,0,0,20,0,2,4,0,0,4,0,0,0,0,0,4,2,0,14,0,2,0,2,0,0,2,0,0,2,0,20,2,0,4,5,2,4 %N A352557 a(n) = number of modules with n elements over the ring of integers in the real quadratic field of discriminant 28. %C A352557 See A352550 for comments and PARI code. %Y A352557 Cf. A038540, A038541, A248107, A352550-A352567. %K A352557 nonn %O A352557 1,3 %A A352557 _N. J. A. Sloane_, Mar 20 2022