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Smallest square starting with a string of n 5's.
1

%I #6 Oct 06 2019 18:13:22

%S 529,55225,555025,5555449,55555432804,555555566736,555555566736,

%T 555555553691076,5555555551052895609,5555555555766940816,

%U 55555555555566005625,55555555555566005625,55555555555551098505150001,5555555555555557064110500049,5555555555555557064110500049,55555555555555555733985150491401,55555555555555555733985150491401

%N Smallest square starting with a string of n 5's.

%Y Cf. A034986.

%K nonn,base

%O 1,1

%A _Patrick De Geest_, Nov 15 1998

%E More terms from Francisco Salinas (franciscodesalinas(AT)hotmail.com), Dec 23 2001