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Numbers needing in binary and ternary representation an equal minimal number of editing steps (delete, insert or substitute) to transform them into their square.
2

%I #6 Mar 30 2012 18:50:43

%S 0,1,5,6,8,11,13,16,17,18,19,33,35,38,40,56,60,74,122,123,133,143,146,

%T 164,168,173,299,350,365,429,497,515,527,564,566,593,608,611,710,1031,

%U 1050,1052,1059,1088,1089,1090,1092,1096,1105,1287,1301,1316,1322

%N Numbers needing in binary and ternary representation an equal minimal number of editing steps (delete, insert or substitute) to transform them into their square.

%C A091092(a(n)) = A091093(a(n)).

%H Michael Gilleland, <a href="http://www.merriampark.com/ld.htm">Levenshtein Distance</a> [It has been suggested that this algorithm gives incorrect results sometimes. - _N. J. A. Sloane_]

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/SquareNumber.html">Square Number</a>

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/Binary.html">Binary</a>

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/Ternary.html">Ternary</a>

%Y Cf. A007088, A001737, A007089, A001738, A000290.

%K nonn,base

%O 1,3

%A _Reinhard Zumkeller_, Dec 18 2003