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 A051457 #4 Jul 02 2025 16:01:58 %S A051457 1,1,1,1,12,1,1,24,1,1,154,98,40,1,252,138,1,567,390,60,1,957,1,2112, %T A051457 825,319,84,1,1144,403,1,6006,1547,112,1,1,30030,23452,14560,7098, %U A051457 2660,740,144,1,53482,38012,21658,9758,3400,884,1,114257,91494,59670,31416 %N A051457 (Terms in A029627)/2. %Y A051457 A029627, A029618. %K A051457 nonn %O A051457 0,5 %A A051457 _James Sellers_