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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.

A195110 Fractalization of the fractal sequence A002260. Interspersion fractally induced by A002260.

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%I A195110 #5 Mar 30 2012 18:57:44
%S A195110 1,2,1,2,3,1,4,2,3,1,4,5,2,3,1,4,5,6,2,3,1,7,4,5,6,2,3,1,7,8,4,5,6,2,
%T A195110 3,1,7,8,9,4,5,6,2,3,1,7,8,9,10,4,5,6,2,3,1,11,7,8,9,10,4,5,6,2,3,1,
%U A195110 11,12,7,8,9,10,4,5,6,2,3,1,11,12,13,7,8,9,10,4,5,6,2,3,1,11,12
%N A195110 Fractalization of the fractal sequence A002260. Interspersion fractally induced by A002260.
%C A195110 See A194959 for a discussion of fractalization and the interspersion fractally induced by a sequence.  The sequence A002260 is the fractal sequence obtained by concatenating the segments 1; 12; 123; 1234; 12345;...
%t A195110 j[n_] := Table[k, {k, 1, n}]; t[1] = j[1];
%t A195110 t[n_] := Join[t[n - 1], j[n]]   (* A002260 *)
%t A195110 t[12]
%t A195110 p[n_] := t[20][[n]]
%t A195110 g[1] = {1}; g[n_] := Insert[g[n - 1], n, p[n]]
%t A195110 f[1] = g[1]; f[n_] := Join[f[n - 1], g[n]]
%t A195110 f[20] (* A195110 *)
%t A195110 row[n_] := Position[f[30], n];
%t A195110 u = TableForm[Table[row[n], {n, 1, 5}]]
%t A195110 v[n_, k_] := Part[row[n], k];
%t A195110 w = Flatten[Table[v[k, n - k + 1], {n, 1, 13}, {k, 1, n}]] (* A195111 *)
%t A195110 q[n_] := Position[w, n]; Flatten[Table[q[n], {n, 1, 80}]]  (* A195112 *)
%Y A195110 Cf. A194959, A002260, A195111, A195112.
%K A195110 nonn
%O A195110 1,2
%A A195110 _Clark Kimberling_, Sep 09 2011