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%I #17 Mar 08 2024 01:13:39
%S 225,5625,22500,562500,2250000,5405625,23765625,56250000,225000000,
%T 540562500,2127515625,2376562500,5625000000,22500000000,54056250000,
%U 58503515625,212751562500,237656250000,562500000000,2250000000000,5405625000000,5850351562500
%N Squares that remain squares if prefixed with a 1.
%H Chai Wah Wu, <a href="/A167035/b167035.txt">Table of n, a(n) for n = 1..1000</a>
%e 225 = 15^2 is a square and becomes the square 1225 = 35^2 if a 1 is attached in front.
%K base,nonn
%O 1,1
%A _Claudio Meller_, Oct 27 2009
%E Comment turned into example by _R. J. Mathar_, Oct 28 2009
%E More terms from _Chai Wah Wu_, Sep 11 2014
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