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%I #22 Oct 13 2019 23:35:04
%S 487,721,42375,110125,198275,1249827,2672125,3668325,4205925,4689974,
%T 7446484,16999709,18700025,59300075,66534325,84998545,139372012,
%U 148421502,291256461,590939886,720025325,781462056,976100002,998014875
%N Numbers k such that the decimal expansion of k^2 consists of two squares that overlap in 2 digits.
%C Subsquares with leading and/or trailing zeros not included. Subsquares at least 3 digits long.
%e k=721 is a term:
%e 721^2 = 519841
%e 228^2 = 51984
%e 29^2 = 841
%e ^^
%e ||
%e 2-digit overlap
%Y Cf. A000290, A048423.
%K nonn,base
%O 1,1
%A _Patrick De Geest_, Apr 15 1999
%E a(14)-a(24) from _Lars Blomberg_, May 05 2011
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