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 A380320 #9 Jan 23 2025 00:25:34 %S A380320 1,-2,3,1,-5,-1,-1,8,1,1,1,-13,1,-2,-1,-1,-1,21,-3,1,1,-21,-1,-1,-1, %T A380320 -1,-1,-1,34,-5,1,1,1,1,2,1,1,1,1,1,1,1,1,1,1,-55,8,1,-2,-1,-1,-1,-1, %U A380320 -1,-1,-2,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,89,-13,-3 %N A380320 First differences of A377092. %H A380320 Paolo Xausa, <a href="/A380320/b380320.txt">Table of n, a(n) for n = 0..10000</a> %F A380320 a(n) = A377092(n+1) - A377092(n). %t A380320 (* A377092list is defined at A377092 *) %t A380320 Differences[A377092list[100]] %Y A380320 Cf. A377092. %K A380320 sign %O A380320 0,2 %A A380320 _Paolo Xausa_, Jan 20 2025