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 A194186 #23 Mar 30 2012 18:53:00 %S A194186 0,0,0,0,0,0,0,0,0,0,0,0,0,18,12,0,0,0,0,36,34,0,0,0,0,0,0,18,0,0,0,0, %T A194186 0,0,0,0,0,0,0,0,0,0,0,48,0,0,0,0,0,0,24,0,0,0,0,0,36,0,0,0,0,0,0,0,0, %U A194186 0,0,0,30,0,0,0,0,16,0,0,0,12,0,0,0,0,0 %N A194186 a(n) = A193507(n) - A080359(n). %C A194186 Conjecture: The sequence is unbounded. %C A194186 Records are 0, 18, 36, 48, 52, ... with indices 1, 14, 20, 44, 96, ... %C A194186 The places of nonzero terms correspond to places of those terms of A193507 which are in A164294. Conjecture: The asymptotic density of nonzero terms is 2/(e^2+1). A heuristic proof follows from the comment to A193507 and the first reference there. %H A194186 Alois P. Heinz, <a href="/A194186/b194186.txt">Table of n, a(n) for n = 1..1000</a> %Y A194186 Cf. A193507, A080359, A104272, A194184. %K A194186 nonn %O A194186 1,14 %A A194186 _Vladimir Shevelev_, Aug 18 2011