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Numbers that can be obtained by inserting multiplication signs among the digits of their squares.
1

%I #22 Apr 04 2013 13:17:44

%S 1,3168,33696,322056,422352,801792,3408048,13304736,24772608,26836992,

%T 31959648,43932456,98558208,152845056,238267008,250677504,362330496,

%U 413779968,511967232,567502848,646507008,1060190208,1273234464,1288514304,1503330304

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

%C 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 Giovanni Resta, <a href="/A217247/b217247.txt">Table of n, a(n) for n = 1..55</a>

%H Giovanni Resta, <a href="/A217247/a217247.txt">Decompositions for the first 55 terms</a>

%e 3168 is in the sequence since its square is 10036224 and 1*0036*22*4 = 3168.

%Y Cf. A179482.

%K nonn,base

%O 1,2

%A _Giovanni Resta_, Mar 16 2013

%E Typo in example corrected by _Christian N. K. Anderson_, Apr 04 2013