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 A332373 #7 Feb 13 2020 00:59:41 %S A332373 9,43,139,327,703,1259,2183,3487,5355,7723,11031,15111,20535,26995, %T A332373 34875,44195,55819,69063,85203,103587,124859,148599,176579,207627, %U A332373 243323,282539,326759,375287,430615,490303,557779,631267,712091,798939,894315,996459,1109691 %N A332373 Main diagonal of A332372. %Y A332373 Cf. A332372. %K A332373 nonn %O A332373 2,1 %A A332373 _N. J. A. Sloane_, Feb 12 2020