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 A205112 #5 Mar 30 2012 18:58:10 %S A205112 2,3,1,6,4,3,10,8,7,4,17,15,14,11,7,28,26,25,22,18,11,46,44,43,40,36, %T A205112 29,18,75,73,72,69,65,58,47,29,122,120,119,116,112,105,94,76,47,198, %U A205112 196,195,192,188,181,170,152,123,76,321,319,318,315,311,304,293 %N A205112 Ordered differences of Lucas numbers. %C A205112 For a guide to related sequences, see A204892. %e A205112 a(1)=s(2)-s(1)=3-1=2 %e A205112 a(2)=s(3)-s(1)=4-1=3 %e A205112 a(3)=s(3)-s(2)=4-3=1 %e A205112 a(4)=s(4)-s(1)=7-1=6 %e A205112 a(5)=s(4)-s(2)=7-3=4 %t A205112 (See the program at A205114.) %Y A205112 Cf. A205114, A204892. %K A205112 nonn %O A205112 1,1 %A A205112 _Clark Kimberling_, Jan 22 2012