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 A256486 #6 May 01 2015 13:12:55 %S A256486 0,-1,-4,-4,-6,-4,-8,-8,-8,-8,-8,-6,-8,-8,-16,-14,-8,-6,-4,-2,-4,-4, %T A256486 -8,-8,-4,0,-8,-8,-6,-4,2,-2,-2,-2,4,4,-10,-12,-2,8,6,10,4,4,2,0,2,6, %U A256486 -2,4,10,10,4,16,18,16,26,24,18,20,26,28,22,28,26,28,30,22,24,26,22,22,18,16,18,34,34,24,18,18,20,20 %N A256486 Difference between n-th Ludic and n-th Lucky number: a(n) = A003309(n) - A000959(n). %H A256486 Antti Karttunen, <a href="/A256486/b256486.txt">Table of n, a(n) for n = 1..2364</a> %H A256486 <a href="/index/Si#sieve">Index entries for sequences generated by sieves</a> %F A256486 a(n) = A003309(n) - A000959(n). %o A256486 (Scheme) (define (A256486 n) (- (A003309 n) (A000959 n))) %Y A256486 Cf. A000959, A003309, A256482, A256487. %K A256486 sign %O A256486 1,3 %A A256486 _Antti Karttunen_, May 01 2015