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 A106431 #8 Feb 04 2023 15:24:15 %S A106431 944,1574,2204,2834,3464,4094,4724,5354,5774,5984,6434,6614,6824,7244, %T A106431 7424,7874,8084,8414,8504,8924,9134,9554,9764,10394,11024,11654,12284, %U A106431 12704,12914,13544,14174,14804,15014,15434,16064,16694,17324,17954,18584,19214,19304 %N A106431 Even elements of A085493. %Y A106431 Cf. A085493, A005231. %K A106431 nonn %O A106431 1,1 %A A106431 _David W. Wilson_, Feb 17 2006