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 A182179 #13 Aug 15 2019 15:48:01 %S A182179 0,0,1,2,5,10,10,511,9904,256719,11700555,1006641217,164059608359, %T A182179 50335907032904,29003487459681209,31397381142749199340, %U A182179 63969560113225130208798,245871831682084026343522859,1787331725248899088889524817016,24636021429399867655322648159009186 %N A182179 a(n) = |A001349(n) - A004251(n)|. %F A182179 a(n) = |A001349(n) - A004251(n)|. %Y A182179 Cf. A001349, A004251, A182159. %K A182179 nonn,less %O A182179 0,4 %A A182179 _Jonathan Vos Post_, Apr 16 2012 %E A182179 Edited by _Alois P. Heinz_, Aug 15 2019