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 A025514 #9 Sep 03 2019 02:53:20 %S A025514 2952,2993,3025,3034,3037,3038,3039,3040,3042,3043,3046,3047,3048, %T A025514 3049,3050,3051,3052,3053,3054,3057,3058,3059,3060,3062,3063,3068, %U A025514 3069,3071,3072,3073,3074,3077,3078,3079,3080,3081,3082,3083,3084,3085,3087,3088 %N A025514 Sequence A025513 divided by 2. %K A025514 nonn %O A025514 1,1 %A A025514 _David W. Wilson_ %E A025514 Title corrected by _Sean A. Irvine_, Sep 03 2019