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 A282242 #8 Feb 10 2017 20:18:39 %S A282242 9,9,9,25,49,9,9,9,25,9,9,9,9,49,9,9,9,25,9,9,9,25,9,49,9,121,9,9,9,9, %T A282242 289,9,25,9,49,9,961,9,25,9,9,9,9,9,49,9,9,25,9,9,9,25,9,9,49,9,9,9,9, %U A282242 529,9,25,9,9,289,49,9,25,9,9,9,9,9,961,9,49 %N A282242 The smallest square referenced in A049094 (Numbers n such that 2^n - 1 is divisible by a square > 1). %H A282242 Robert Price, <a href="/A282242/b282242.txt">Table of n, a(n) for n = 1..296</a> %Y A282242 Cf. A049094, A282243. %K A282242 nonn %O A282242 1,1 %A A282242 _Robert Price_, Feb 09 2017