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 A144114 #4 Mar 30 2012 18:52:27 %S A144114 9,26,4,41,19,346,17179869184,524287,130,895430243255237372246531,242, %T A144114 2198,155,272,134,1419862,8,524254,0,26,28,31,2190,48,20,8243,30,4, %U A144114 387,52,3747,127,1220703121 %N A144114 (1, 2, 3, 2^2, 5, 2*3, 7, 2^3, 3^2, 2*5, 11, 2^2*3, 13, 2*7, 3*5,..) becomes (abs(1-2^3-2, 2-5^2-3, 7-2^3-3, 2-2^5-11, 2-2^3-13, 2-7^3-5,..)). %e A144114 Abs (2-7^3-5)=abs (-346) =346=a(6). %e A144114 Abs (2-4^17-2)=abs(-17179869184)=17179869184=a(7). %e A144114 Abs (3-2^19-2)=abs (-524287)=524287=a(8). %e A144114 Abs (2-5^3-7)=abs (-130)=130=a(9), %e A144114 etc. %Y A144114 Cf. A141287, A141261, A136678, A143717. %K A144114 nonn %O A144114 1,1 %A A144114 _Juri-Stepan Gerasimov_, Nov 17 2008 %E A144114 More terms from _R. J. Mathar_, Apr 18 2010