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 A216510 #16 Feb 16 2024 06:31:30 %S A216510 0,0,0,0,0,0,1,0,0,1,0,0,0,0,1,0,0,0,0,0,0,1,0,0,1,0,0,1,0,0,1,0,1,0, %T A216510 0,0,0,0,0,1,0,1,0,0,0,0,0,0,1,0,0,0,0,0,2,0,0,1,0,1,0,0,1,0,0,0,0,0, %U A216510 0,2,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,0,1 %N A216510 Number of positive integer solutions to the equation a^2 + 6*b^2 = n. %Y A216510 Cf. A155716. %K A216510 nonn %O A216510 1,55 %A A216510 _V. Raman_, Sep 08 2012