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Palfree squares whose root is the smallest possible greater than 10^n (palfree = contains no palindromic substring except single digits).
2

%I #9 Oct 17 2019 22:16:27

%S 169,10816,1028196,102475129,10210496209,1021021327936,

%T 102102415721476,10210210652174569,1021021026820134201,

%U 102102102318249314064,10210210230410293217569

%N Palfree squares whose root is the smallest possible greater than 10^n (palfree = contains no palindromic substring except single digits).

%C Probably finite.

%H Keith Schneider, <a href="/A052066/b052066.txt">Table of n, a(n) for n = 1..25</a>

%H Keith Schneider, <a href="/A052065/a052065.txt">Mathematica code for A052025-A052028</a>

%Y Cf. A052065, A052061, A052062.

%K nonn,base

%O 1,1

%A _Patrick De Geest_, Jan 15 2000

%E More terms from Keith Schneider (schneidk(AT)email.unc.edu), May 23 2007