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 A162090 #6 Jul 22 2025 06:49:32 %S A162090 8,1324,6842284,1257194266246,9191448163080152260, %T A162090 2907883712766278818772179090 %N A162090 Number of n X n 0..7 arrays with rows and columns, considered as 8-ary numbers, in nondecreasing order. %K A162090 nonn %O A162090 1,1 %A A162090 _R. H. Hardin_ Jun 25 2009