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 A268611 #15 Jun 08 2017 16:33:46 %S A268611 0,2,1,0,1,0,5,0,1,0,-1,6,1,0,-1,8,-1,2,3,2,1,5,7,1,10,2,-1,-2,-3,6,1, %T A268611 2,1,0,7,2,1,0,6,0,3,4,3,2,3,4,5,6,7,-1,12,8,2,11,15,2,1,0,7,2,1,0,9, %U A268611 0,3,8,7,6,6,8,5,8,9,8,7,5,7,-1,9,6,5,4,7 %N A268611 a(n) = A256417(n) - n. %C A268611 A152458 is finite if and only if this sequence has a finite number of zeros. %H A268611 Peter Kagey, <a href="/A268611/b268611.txt">Table of n, a(n) for n = 1..10000</a> %Y A268611 Cf. A064413, A065519, A256417. %K A268611 sign %O A268611 1,2 %A A268611 _Peter Kagey_, Feb 08 2016