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 A352562 #5 Mar 21 2022 11:25:32 %S A352562 1,1,0,2,2,0,0,3,1,2,0,0,2,0,0,5,2,1,0,4,0,0,0,0,5,2,0,0,2,0,0,7,0,2, %T A352562 0,2,2,0,0,6,2,0,0,0,2,0,0,0,1,5,0,4,2,0,0,0,0,2,0,0,2,0,0,11,4,0,0,4, %U A352562 0,0,0,3,2,2,0,0,0,0,0,10,2,2,0,0,4,0,0,0,2,2,0,0,0,0,0,0,2,1,0,10,2,0,0,6,0,2,0,0,2,0,0,0,2,0,0,4,2 %N A352562 a(n) = number of modules with n elements over the ring of integers in the imaginary quadratic field of discriminant -4. %C A352562 See A352550 for comments and PARI code. %Y A352562 Cf. A038540, A038541, A248107, A352550-A352567. %K A352562 nonn %O A352562 1,4 %A A352562 _N. J. A. Sloane_, Mar 21 2022