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 A054162 #11 Jan 24 2022 03:56:34 %S A054162 0,0,1,3,4,9,14,28,51,92,173,319,603,1148,2188,4191,8051,15535,30003, %T A054162 58138,112855,219452,427408,833549,1627633,3181948,6226802,12196599, %U A054162 23910445,46911094,92104226,180957097,355747623,699778072,1377253775 %N A054162 Number of positive integers <= 2^n of form 3 x^2 + 5 y^2. %H A054162 <a href="/index/Qua#quadpop">Index entries for sequences related to populations of quadratic forms</a> %Y A054162 Cf. A020678. %K A054162 nonn %O A054162 0,4 %A A054162 _David W. Wilson_