cp's OEIS Frontend

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.

A217247 Numbers that can be obtained by inserting multiplication signs among the digits of their squares.

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%I A217247 #22 Apr 04 2013 13:17:44
%S A217247 1,3168,33696,322056,422352,801792,3408048,13304736,24772608,26836992,
%T A217247 31959648,43932456,98558208,152845056,238267008,250677504,362330496,
%U A217247 413779968,511967232,567502848,646507008,1060190208,1273234464,1288514304,1503330304
%N A217247 Numbers that can be obtained by inserting multiplication signs among the digits of their squares.
%C A217247 The first nontrivial term such that the resulting multiplicands have no leading zeros is given by 152845056^2 = 23361611143643136 and 2*3*3*6*1*6*1*1*14*3*6*4*3*13*6 = 152845056.
%H A217247 Giovanni Resta, <a href="/A217247/b217247.txt">Table of n, a(n) for n = 1..55</a>
%H A217247 Giovanni Resta, <a href="/A217247/a217247.txt">Decompositions for the first 55 terms</a>
%e A217247 3168 is in the sequence since its square is 10036224 and 1*0036*22*4 = 3168.
%Y A217247 Cf. A179482.
%K A217247 nonn,base
%O A217247 1,2
%A A217247 _Giovanni Resta_, Mar 16 2013
%E A217247 Typo in example corrected by _Christian N. K. Anderson_, Apr 04 2013