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 A352560 #5 Mar 21 2022 11:13:37 %S A352560 1,0,2,1,0,0,2,0,5,0,2,2,0,0,0,2,0,0,0,0,4,0,0,0,1,0,10,2,0,0,0,0,4,0, %T A352560 0,5,1,0,0,0,2,0,0,2,0,0,2,4,5,0,0,0,2,0,0,0,0,0,0,0,0,0,10,3,0,0,2,0, %U A352560 0,0,2,0,2,0,2,0,4,0,0,0,20,0,2,4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,10,1,2,0,0,0,0,0,2,10,0,0,2,4,0,0,0 %N A352560 a(n) = number of modules with n elements over the ring of integers in the real quadratic field of discriminant 37. %C A352560 See A352550 for comments and PARI code. %Y A352560 Cf. A038540, A038541, A248107, A352550-A352567. %K A352560 nonn %O A352560 1,3 %A A352560 _N. J. A. Sloane_, Mar 20 2022