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 A114986 #20 Mar 24 2021 15:35:58 %S A114986 1,1,0,1,1,0,1,0,1,1,0,1,1,0,1,0,1,1,0,1,0,1,1,0,1,1,0,1,0,1,1,0,1,1, %T A114986 0,1,0,1,1,0,1,0,1,1,0,1,1,0,1,0,1,1,0,1,0,1,1,0,1,1,0,1,0,1,1,0,1,1, %U A114986 0,1,0,1,1,0,1,0,1,1,0,1,1,0,1,0,1,1,0,1,1,0,1,0,1,1,0,1,0,1,1,0,1,1,0,1,0 %N A114986 Characteristic function of (A000201 prefixed with 0). %H A114986 Lord, E. A, Ranganathan, S. and Subramaniam, A., <a href="http://materials.iisc.ernet.in/~lord/webfiles/vop.pdf">Stacking sequences and symmetry properties of trigonal vacancy-ordered phases</a>, Phil. Mag. A 82 (2002) 255-268. %H A114986 N. J. A. Sloane, <a href="/A115004/a115004.txt">Families of Essentially Identical Sequences</a>, Mar 24 2021 (Includes this sequence) %H A114986 <a href="/index/Ch#char_fns">Index entries for characteristic functions</a> %Y A114986 Essentially the same as A005614. Cf. A096270, A189479. %Y A114986 The following sequences are all essentially the same, in the sense that they are simple transformations of each other, with A000201 as the parent: A000201, A001030, A001468, A001950, A003622, A003842, A003849, A004641, A005614, A014675, A022342, A088462, A096270, A114986, A124841. - _N. J. A. Sloane_, Mar 11 2021 %K A114986 nonn,easy %O A114986 0,1 %A A114986 _N. J. A. Sloane_, Feb 28 2006