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 A282269 #9 Feb 10 2017 20:36:37 %S A282269 9,9,25,9,9,9,25,9,9,9,25,9,121,9,9,289,9,25,9,169,9,9,25,9,9,9,25,9, %T A282269 9,9,9,25,9,9,9,25,9,9,9,25,9,9,9,9,25,9,9,289,9,25,9,9,9,25,9,169,9, %U A282269 9,9,25,9,9,9,25,9,121,9,9,25,9,9,1849,9,9,25,9 %N A282269 The smallest square referenced in A049096 (Numbers n such that 2^n + 1 is divisible by a square > 1). %H A282269 Robert Price, <a href="/A282269/b282269.txt">Table of n, a(n) for n = 1..5000</a> %Y A282269 Cf. A049096, A282270. %K A282269 nonn %O A282269 1,1 %A A282269 _Robert Price_, Feb 10 2017