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 A162085 #6 Jul 22 2025 06:48:59 %S A162085 3,29,1169,250841,318174607,2533164987353,132171590850720635, %T A162085 46774077148795239899357,115527764322088806347883934235 %N A162085 Number of n X n 0..2 arrays with rows and columns, considered as 3-ary numbers, in nondecreasing order. %K A162085 nonn %O A162085 1,1 %A A162085 _R. H. Hardin_ Jun 25 2009