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%I #12 Nov 23 2014 03:04:52
%S 16,14130,42260,491230,11192300,18172350,20878660,565802820,592874284,
%T 2765209166,19789454240,35082937167210,393840573502266,
%U 7027165155369334,12621688931426416,14721538161161584,24823861761554840,26825614715841966,707326082998942734
%N Numbers whose squares remain squares when prepended with 2 and appended with 25 in base 10.
%C Conjecture: squares of numbers in the sequence ends in either 00 or 56.
%C a(73) >= 10^50. - _Hiroaki Yamanouchi_, Nov 22 2014
%H Chai Wah Wu and Hiroaki Yamanouchi, <a href="/A249968/b249968.txt">Table of n, a(n) for n = 1..72</a> (terms a(1)-a(62) from Chai Wah Wu)
%e 14130^2 = 199656900, 219965690025 = 469005^2.
%Y Cf. A249633, A249621.
%K nonn,base
%O 1,1
%A _Chai Wah Wu_, Nov 09 2014
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