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 A086453 #10 May 10 2013 12:45:14 %S A086453 0,1,7,3,113,971,759,12589,128481,144027,1377017,15273693,24294831, %T A086453 146961301,1808548329,3842160243,15148937153,213183639237, %U A086453 583349245479,1481300283709,24998687462961,86112795218187,132385977330377 %N A086453 Least difference between 5^n and a power of 2. %F A086453 min(5^n-2^A061785(n), 2^(A061785(n)+1)-5^n), where A061785(n) is Beatty sequence for log[2](5). - _Vladeta Jovovic_, Sep 11 2003 %Y A086453 Cf. A061785, A056850. %K A086453 nonn %O A086453 0,3 %A A086453 _Lekraj Beedassy_, Sep 09 2003 %E A086453 More terms from _Ray Chandler_ and _John W. Layman_, Sep 10 2003