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 A131394 #15 May 31 2021 21:30:24 %S A131394 0,1,2,-1,3,4,-2,-3,6,-4,5,7,-5,8,-6,-7,9,10,-8,11,-10,12,-9,-11,13, %T A131394 14,-13,15,-12,-15,17,16,-14,-17,18,19,-16,20,-19,21,-23,22,-18,23, %U A131394 -20,-21,24,-22,25,26,-24,27,-26,28,-25,-27,32,29,-28,30,-29,31,-37,34,-36,33,-39,35,-33 %N A131394 Conjectured permutation of the integers using Rule 2 with A131393(1)=1. %C A131394 Rule 2 is given at A131393. Conjecture: A131394 is a permutation of the integers. %H A131394 <a href="/A131394/b131394.txt">Table of n, a(n) for n = 1..69</a> %F A131394 This is the sequence d( ) in the formula for A131393. %e A131394 See A131393. %Y A131394 Cf. A131388, A131389, A131390, A131391, A131392, A131393, A131395, A131396, A131397. %K A131394 sign,unkn %O A131394 1,3 %A A131394 _Clark Kimberling_, Jul 05 2007