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 A144311 #23 Dec 05 2024 19:43:09
%S A144311 1,5,11,29,41,65,107,149,203,257,347,527,545,617,707,869,965,1079,
%T A144311 1283,1397,1529,1709
%N A144311 The length of the longest sequence of consecutive integers, each equal to 1 or -1 modulo at least one of the first n primes.
%C A144311 For n > 1, a(n) == 5 (mod 6).
%H A144311 StackExchange, <a href="http://mathematica.stackexchange.com/questions/114758/oeis-a144311-generating-function">OEIS A144311 Generating function</a>, May 10 2016.
%H A144311 Jinyuan Wang, <a href="/A144311/a144311.cpp.txt">C++ program</a>.
%e A144311 For the first, second and fourth terms the sequences are {1}, {1,2,3,4,5}, and {73,74,...,101}. [corrected by _Felix A. Pahl_, May 10 2016]
%Y A144311 Cf. A048670, A049300, A058989.
%K A144311 nonn,more,hard
%O A144311 1,2
%A A144311 Andrew Carter (acarter09(AT)newarka.edu), Sep 17 2008
%E A144311 a(8)-a(16) from _Max Alekseyev_, Nov 18 2009
%E A144311 a(17)-a(22) from _Jinyuan Wang_, Nov 26 2024