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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.

A276665 In the '3x+1' problem, these values for the starting value set new records for both the number of steps and the highest point of trajectory before reaching 1.

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%I A276665 #33 Jan 15 2025 16:44:48
%S A276665 1,2,3,7,27,703,26623
%N A276665 In the '3x+1' problem, these values for the starting value set new records for both the number of steps and the highest point of trajectory before reaching 1.
%C A276665 Both the 3x+1 steps and the halving steps are counted.
%C A276665 If it exists, a(7) > 14727207461063895711 (A006877(148)). - _Hugo Pfoertner_, Jan 12 2025
%H A276665 José Eduardo Gaboardi de Carvalho, <a href="/A276665/a276665.txt">Java program</a>
%Y A276665 Intersection of A006877 and A006884.
%K A276665 nonn,more
%O A276665 1,2
%A A276665 _José Eduardo Gaboardi de Carvalho_, Sep 12 2016

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