%I #10 Aug 06 2024 22:19:13
%S 9,81,841,0,38416,405769,8003241,82246761,0,1021697296,86925318561,
%T 119013960256,6323524974244,60207636572164,472453565584009,0,
%U 85832135162345961,0,0,0,617801116917258936964,3633816317608493633296,0
%N Largest n-digit square whose external digits as well as internal digits form a square, or 0 if no such number exists.
%H Max Alekseyev, <a href="/A077364/b077364.txt">Table of n, a(n) for n = 1..91</a>
%Y Cf. A077355, A077356, A077357, A077363.
%K base,nonn
%O 1,1
%A _Amarnath Murthy_, Nov 05 2002
%E More terms from _Erich Friedman_, Aug 08 2005
%E More terms from _Max Alekseyev_, Apr 24 2010